эфирaether [eris, m];
меситьsubigere [o [e]gi,
подмерзатьsubgelascere [o, gelui,-];
problema, atis, n; quaestio [onis, f] ; pensum [i, n] ; opus [eris, n] propositum; munus [e]ris, n; onus [e]ris, n;