Anybody?

Indefinite pronouns are those used for nothing/nobody in particular, or everything/everybody in general. In Shaetlan the indefinite is onyeen ('anyone') or onybody ('anybody'). Onyeen derives from OE ǣniġ ('any') + OE ān ('one'), and onybody derives from ǣniġ + OE bodiġ ('body, torso, etc') . The Scots form ony/onie is attested since 1258. The OE numeral ān 'one' split into a north/south divide from the early 13C, where the northern form retained the open front vowel (een/aen/ee/ai/etc) while the southern form evolved into a back rounded vowel (o/on/un/oon/one/won/etc). A variant of the southern forms was later borrowed into Scots in the 19C, so that Shaetlan now has both the older ee(n) and the newer wan for the numeral 'one'. To "correct" onyeen to *onyone would therefore be linguistically and historically inaccurate.

Strictly speaking the Southern form evolved from a open front unrounded vowel to a back rounded monophthong, which later became a dipthong (/wa-/). It was this Mod.Eng form which was borrowed into Scots (wan).