Part of speech: adverb, preposition
(Dat, Acc) 1. in a spatial sense: to, unto, as far as; 2. in a temporal sense: until (also óþ); fram eástdǽle óþ westdǽle from the eastern part of the country to the western one; óþ ðás daȝas until those days, till the time (when); óð þæt vid óþþæt
Etymology
[← Prot-Germ *unda; Goth und; O Fris und; O Sax und; OHG unt; O Icel und ← Indo-Europ *anta-, *ņta-]