Oðer
conj. either . . . or, S, S2, S3, C3; ouðer, S2, H, G; or, S; adv. even, S2; auþer, HD.—AS. á-hwæðer (óhwæðer, áwðer, ówðer, áuðer, áðer, áðor). See Sievers, 346.