1 FLUG
n., but in old writers usually, if not always, flugr, m. [cp. fljúga I]:—flight, Lat. volatus; fuglanna flug (acc.), Stj. 17; þá beinir hann fluginn, Edda 60; (hann) dró arnsúg í flugnum, 46; í sínum flug, Stj. 270: the phrase, á flugi, in the flight; fugl á flugi, a bird of flight, Od. xii. 62; mætir hón hamrinun á flugi, Edda 58; á ferð ok flugi, ‘faring and flying,’ all in motion, Fas. i. 6, Núm. 2. 99: metaph., var hón öll á flugi, she was all in a flutter, Fb. ii. 335.
2 FLUG
II. = flótti, Lat. fuga, flight, only in poetry; trauðr flugar, unwilling to flee, bold, Hkv. 1. 52, Fms. xi. 186 (in a verse); flugar-trauðr, adj. bold, Hkv. 1. 54; cp. flug-skjarr, flug-styggr, flug-trauðr, flug-varr, adj., flug-þverrir, m. firm in battle, unflinching, all epithets of heroes, Lex. Poët.
3 FLUG
III. neut. a sheer precipice; hann er svá hár, ok þat flug fyrir ofan at …, Fas. ii. 231; hence fluga-björg, n. pl. and fluga-hamarr (mod. flug-hamarr), m. precipices, Bs. i. 330, Fms. viii. 18. 49, Fb. iii. 408, Fas. ii. 231: also of a current, fluga-fors, m., Mag.; fluga-straumr, m. a rapid vortex, eddy, Edda 67 (in a verse):—other compds in mod. use, flug-beittr, adj. keen-edged, as a razor; flug-gáfaðr, flug-næmr, flug-skarpr, adj. keen, acute, quick to learn; flug-háll, adj. (flug-hálka, u, f.), very slippery; flug-ríkr, adj. immensely rich.