1. u, f. [from the Germ. reise], a journey; this word, which is very rare in mod. usage (ferð and för are the vernacular words), appears at the end of the 15th century, Bs. i. 900 (Laur. S. the second recension); var svá hörð reisan þeirra, Fms. viii. 32 (v. l., an error for reiðan, in a vellum of the latter part of the 15th century, but shewing that the transcriber knew the German word); in Norway it occurs in a deed of 1344: in mod. usage Icel. say ferða-reisa, vera á ferða-reisu:—í þrjár reisur, thrice, Bs. ii. 474. reisu-móðr, adj. journey-weary, Jón Þorl.

2. t, [Germ. reisen], to travel, (mod.)

3. adj. indecl., of cattle so starved or old that they cannot rise, but must be lifted up, reisa af hor.