\Auf\ ([add]f), n. [OE. auph, aulf, fr. Icel. [=a]lfr elf. See {Elf}.] [Also spelt {oaf}, {ouphe}.] A changeling or elf child, -- that is, one left by fairies; a deformed or foolish child; a simpleton; an oaf. [Obs.] --Drayton.