Irish dún

← Proto-Celtic *dūnom (inherited)

← Irish urdhún (link)

← Irish dún long (link)

← Irish dún Dé (link)

← Irish dúin (link)

← Old Irish dún (inherited)

← Old Irish dúnaid (inherited)

← Old Irish dúinid (mention)

→ English down (cognate)

→ English town (cognate)

→ English dun (borrowed)

→ English Down (derived)

→ Irish dúnadh (suffix)

→ Irish Dún (mention)