pret. fauk, 2nd pers. faukt, mod. faukst, pl. fuku; pres. fýk, pl. fjúkum; pret. subj. fyki; part. fokinn; sup. fokit: [Swed. fyka; Dan. fyga]:—to be driven on, tossed by the wind, of snow, dust, spray, or the like: allit., fjúka sem fys, as chaff; mold er fýkr, 623. 25; axhelmur þær sem fjúka … ef nokkut fýkr frá oss, Stj. 422: of snow, tók þá at f., it began to snow, Grett. 111; var fjúkanda veðr, there was a snow-storm, 144: hafði fokit yfir öndverðan vetr, they had been buried (had perished) in the snow, Glúm. 341; hence the metaph. phrase, nú er fokið í flest skjól, now all places of shelter are filled with snow, no refuge left, Gísl. 63, Nj. 258; útvegar Háreks eru foknir, all H.’s outgoings are stopped, Fms. xi. 423; sýndisk þeim sem eldr fyki um alla gluggana, of embers, Bs. i. 7; fauk svá sandrinn, at …, of the ashes from a volcano, 804, (sand-fok, a drift of sand or ashes.)

2. metaph. to fly off; fauk af höfuðit, Nj. 97, Ld. 291; fuku tennrnar ór Búa. Fms. xi. 139; láta fjúka í kveðlingum, to reply with sarcastic, extemporised ditties, Grett. 94.