roast(ed)

 I have a note above my desk that says "Next blog post: roast(ed)". It's been there for three years, since Melissa L wrote to say:

Dear Lynne,

I teach English in Germany and enjoy your blog.

I am a native speaker of American English. Most of my teaching material uses British English. I spend a lot of time thinking about and paying attention to the differences between AmE and BrE (though maybe not as much as you).

Anyway, in an exercise about dishes on the holiday table, there was roast turkey and roast potatoes.

I would say roasted potatoes.

 
Roasted is an adjective made out of the participial form of a verb. We make such modifiers all the time—as we say in linguistics, it's a productive morphological process. You could have a written resignation letter, a fried dumpling, a worn path. So, roasted vegetables or roasted turkey don't need much explanation: we're just using the tools that English gives us.

The question more is: what's going on with roast? Is roast beef a compound noun? It's a roast and it's beef. No, that also seems to be a past-participle of the verb, one that goes back to Middle English. These days, it seems only to be used as an adjective. People generally don't things like "I have roast a turkey" or "A turkey has been roast" these days.
 
So, we've ended up with two participial adjectives meaning 'having been cooked by roasting', and we have preferences for which foods we use each with. It's pretty much always roast beef in all Englishes. Roast turkey and roast chicken and roast lamb are preferred over roasted, but not as strongly as for beef. (I've kept the chart to three meats for viewability.) (Note that I've put the in the searches to make sure that the roast is not a verb.)
 

So it looks like roast is generally preferred over roasted with meats, but (except for beef), this looks stronger in BrE than AmE. So while roast is common with turkey and chicken in both, there are more roasteds in AmE than in BrE. (It looks like Canadian English really likes roasted turkey, but all of the examples come from a single source.)
 

 
What else can be "roast"? I asked the GloWBE corpus interface to give me the nouns after roast that differ most between US and UK. Remember: the tables below do not show the most common nouns after roast (that would be beef). They're for showing the ones that differ most. So green in the UK (right) side, means that those expressions are strongly British. The darker the green, the stronger the difference. Pink/red means NOT associated. The white ones in the table are very similar in the two.
 
(GloWBE doesn't seem to tag the adjective roast as an adjective, so I can only ask for the word roast, which means that some of the roasts in these numbers are the verb, as in They roast coffee for a living. Nevertheless, digging into the data shows that these roast+noun combinations mostly have roast as an adjective.)
 
 
 
Roast dinner stands out in the UK data. This is a meal (traditionally a Sunday roast) with some roast(ed) meat or vegetarian alternative, roast(ed) potatoes, lots of different vegetables, gravy and often a Yorkshire pudding. (I'm shocked to see that I didn't mention Yorkshire puddings in my pudding post. So there's a Wikipedia link if you need one.) A big part of the BrE roast dinner is the potatoes, which also show up strongly in the UK side of the table. I won't go further into the institution of roast dinners just because I want to get back to the adjective, but I will note that it's my husband's favo(u)rite meal despite his having been a vegetarian for 35 years. The vegetarian main might be a nut roast, but it also might be some kind of vegetable Wellington or a stuffed squash or (BrE) all sorts. The (orig. AmE) sides are at least as important as the "main" part of the meal, and roast(ed) potatoes are key. The person who takes the last roast potato is a stereotype of bad manners in these parts. People have very strong feelings about roasted potatoes. They are so well loved that they have a nickname: roasties. (Yorkshire puddings sometimes get the same treatment, so if someone says they want a roast dinner with Yorkies, they're probably not talking about eating or dining with terriers. Context matters.)
 
Back to roasted. Here's are the US/UK differences, where we can see the converse of the previous tables—more expressions that are strongly American.

Some of the highlighted expressions here are less about the form of roast(ed) and more about what things tend to be eaten in each place. I think it's fair to say that Americans like roasted garlic more and that Britons come across more roasted chestnuts. 
 
My main conclusions: BrE seems to prefer roast over roasted for any meats and for potatoes. AmE isn't 100% won over by roast for things other than roast beef. The two Englishes come together for vegetables and peanuts, for which roasted does well. 
 
Why are certain things roast rather than roasted in BrE? I wonder if it does have something to do with the roast dinner. Here's my thinking:
  • If we think of roast in Sunday roast as the roasted meat (after all, we do call roasted meat "a roast"), then 
  • The roast in roast dinner probably is too. A dinner that features a roast. (Both expressions go back to early 19th century, with Sunday roast first.)
  • But then people start thinking of roast there as an adjective, rather than a noun modifying a noun: a dinner with the quality 'roast' rather than a dinner of a roast.
  • The components of the roast dinner get the modifier roast rather than roasted, because roast now indicates that kind of dinner. 
  • Hence: roast potatoes.

To test this, I looked at carrots and parsnips, two typical roast dinner vegetables that are roasted. (Not all roast dinner (BrE) veg is roasted. For instance, there's often cabbage.) The parsnips seem to support my hypothesis. The carrots, not so much. (I did check these for stray verb-rather-than-adjective roast(ed)s. There were none.)



The moral of the story: send me an email request for a blog post, and I may eventually get to it! 

Some related links/points:
  • On the AmE sense of roast for a ceremonial (orig. AmE) ribbing
  • On skim(med) milk (which trends the opposite way)
  • Note that BrE calls mashed potato(es) mash, but BrE speakers generally don't use mash as an adjective mash potato(es), and it's not common for AmE speakers either (in the GloWBE data). There's a different morphological difference, as indicated by my parentheses here—so click through for that link.
  • You find the occasional corn beef in AmE, but that's faaaaar outweighed by the corned beefs. But remember that this refers to different things in AmE & BrE!
  • I had intended to write about ice(d) tea in this post too, but it turned out that the numbers didn't support the idea that AmE and BrE treat this differently. Iced tea is pretty standard in both, with some products marketed as ice tea.


 
 
 

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AmE = American English
BrE = British English
OED = Oxford English Dictionary (online)