Irish domhain

← Proto-Celtic *dubnos (inherited)

← Irish doimhin (link)

← Proto-Indo-European *dʰewbʰ- (root)

← Proto-Indo-European *dʰubʰnós (inherited)

← Old Irish domain (inherited)

→ Irish doimhne (mention)

→ Irish Domhan (mention)

→ Irish fodhomhain (affix)

→ Irish fodhomhain (affix)

→ Irish doimhneas (affix)

→ Irish doimhneacht (affix)

→ Scottish Gaelic domhainn (cognate)