The story
- Irish · derived from-achán“diminutive suffix”
- Irish · derived fromcluthar“sheltered, cosy; secretive”
- Irish · derived fromclutharachán
- English todayclurichaun
From Irish clutharachán, from Irish cluthar (“sheltered, cosy; secretive”) + Irish -achán (“diminutive suffix”) (compare same suffix in Irish leipreachán and lucharachán (“leprechaun”)). William Butler Yeats, citing folklorist Nicholas O'Kearney, derives it from clobhair-ceann, from clobhair (“hunched, bent”) + ceann (“head”), but this lacks semantic plausibility.
Etymology from Wiktionary, CC BY-SA 4.0.