Irish seanchas

← Proto-Celtic *senokʷoysyos (mention)

← Proto-Celtic *senos (derived)

← Proto-Celtic *kʷiseti (mention)

← Irish seancha (affix)

← Irish -as (affix)

← Proto-Indo-European *sénos (derived)

← Old Irish senchas (inherited)

← Old Irish senchus (mention)

← Old Irish senchae (mention)

← Old Irish -as (mention)

← Old Irish -us (mention)

← Old Irish senchae (mention)

← Old Irish ad·cí (mention)

→ Irish naomhsheanchas (compound)

→ Irish banseanchas (affix)