Lewis & Short

prōtŏtŏmus, a, um, adj., = πρωτότομος, that is cut off first, of the first cutting: caules, the earliest cabbage-sprouts, Col. 10, 369 (cf. Plin. 19, 8, 41, § 137); so, coliculi, Mart. 14, 101.

    1. 2. As subst.: prō-tŏtŏmi, ōrum, m., cabbages of the first cutting, Mart. 10, 48, 16.