spūmō āvī, ātus, āre spuma, to foam, froth: fluctu spumabant caerula cano, V.: Spumans aper, V.: spumat plenis vindemia labris, V.: frena spumantia, covered with foam, V.: sanguis, V.: spumantibus ardens visceribus, foaming with wrath, Iu.: saxa salis niveo spumata liquore, frothed over, C. poet.