Two words
May be 2 words combined (os+sim) If not obvious, probably incorrect
os N 3 2 NOM S N
os N 3 2 VOC S N
os N 3 2 ACC S N
os, oris N (3rd) N [XXXAX]
mouth, speech, expression; face; pronunciation;
os, ossis N (3rd) N [XXXBX]
bone; (implement, gnawed, dead); kernel (nut); heartwood (tree); stone (fruit);
os, ossuis N (3rd) N [XXXDX] lesser
bones (pl.); (dead people);
s.im V 5 1 PRES ACTIVE SUB 1 S
sum, esse, fui, futurus V [XXXAX]
be; exist; (also used to form verb perfect passive tenses) with NOM PERF PPL
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