пружинаspira [ae, f];
первопричинаinitium [ii, n]
мераmensura [ae, f];
acies [ei, f] (falcis);spiculum [i, n] (calami;hastae);cuspis [idis, f];sudis [is, f];aculeus [i, m];apex [icis, m];mucro [onis, m];murex [icis, m];