Beneath or below; underneath.
Old English 'beneothan' (be- 'by' + neothan 'beneath'). Over time, the 'b' was lost in dialectal speech, leaving 'aneath.' Common in Middle English but archaic by the 17th century.
This word survives in Scottish English and poetic traditions—you'll find it in Robert Burns' poems, where it adds a lyrical, antiquated flavor that modern 'beneath' just can't match.
Complete word intelligence in one call. Free tier — 50 lookups/day.