Old Korean 不冬

← Middle Korean ᄃᆞ (cognate)

← Middle Korean -을〮 (cognate)

← Old Korean 毛冬 (cognate)

← Proto-Korean (mention)

← Proto-Korean (mention)

← Proto-Korean (mention)

→ Korean -지 (mention)

→ Middle Korean 아니 (mention)

→ Old Korean 毛冬 (cognate)