Two words
May be 2 words combined (ars+onerium) If not obvious, probably incorrect
ars N 3 3 NOM S F
ars N 3 3 VOC S F
ars, artis N (3rd) F [XXXAO]
skill/craft/art; trick, wile; science, knowledge; method, way; character (pl.);
oner.ium N 3 2 GEN P N
onus, oneris N (3rd) N [XXXBX]
load, burden; cargo;
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