ноготьunguis [is, m];
древовидныйarbustus [a, um]
десятилетиеdecennium [ii, n];
peritissimus [i, m]; expertus [i, m]; homo [inis, m] peritus, gnarus,sciens, intelligens; existimator [oris, m]; cognitor [oris, m], cognoscens, sciens, ntis, m;