Quenya 

alacarna

adjective. well-done, well-made

Elements

WordGloss
al(a)-“well, happily”
car-“to do, make, to do, make, [ᴹQ.] build”

carna

built, made

carna passive participle *"built, made" in Vincarna "newly-made" (MR:408), also struck-out alacarna "well-done, well-made" (PE17:172). Carna would seem to be the passive participle of car-, though a longer form carina (read *cárina?) is also attested (VT43:15).