Where does “caochán” come from?

caochán (Irish) comes from Irish caoch, from Old Irish cáech, from Proto-Celtic kaikos, from Proto-Indo-European *kéh₂ikos — one-eyed, blind.

caochán (Irish): purblind creature; mole; marsh rill; boghole

Definitions

  1. purblind creature; mole; marsh rill; boghole

Ancestry of “caochán”, step by step

caochán traces back through two separate lines of ancestry.

via Irish caoch

StepLanguageWordMeaning
1Irishcaochblind, purblind person, creature; blind,...
2Old Irishcáechblind in one eye; empty; person blind in one eye
3Proto-Celtickaikosone-eyed, blind
4Proto-Indo-European*kéh₂ikosone-eyed, blind

via Old Irish cáechán

StepLanguageWordMeaning
1Old Irishcáechánone-eyed person
Every word from Proto-Indo-European *kéh₂ikos →Every word from Proto-Celtic kaikos →Every word from Old Irish cáech →