Irish scáth

← Proto-Celtic *skātom (inherited)

← Proto-Indo-European *(s)ḱeh₃- (derived)

← Old Irish scáth (inherited)

→ English shadow (cognate)

→ Old English sceadu (cognate)

→ Welsh cysgod (cognate)

→ Irish scáthán (affix)

→ Irish scáthaigh (affix)

→ Irish scáthchruth (affix)

→ Irish scáthach (affix)