köken: First attested in the Worin seokbo (月印釋譜 / 월인석보), 1459, as Middle Korean 아직〮 (Yale: àcík), also attested as 안ᄌᆞᆨ〮 (Yale: àncók), 안직〮 (Yale: àncík). All three MK forms are preserved in various dialects, but only the non-nasal one is accepted in the standard Seoul variety.