shillelagh

/ʃəˈleɪli/

Etymology

From Irish sail éille (“shillelagh”, literally “cudgel of a thong”), altered to match the name of the village of Shillelagh (from Irish Síol Éalaigh (literally “descendants of Éalach”), because the forest near it provided wood from which such clubs could be made.

name

A village in County Wicklow, Ireland.

noun

A wooden (traditionally blackthorn (sloe) wood) club ending with a large knob.“[T]he stem of a stout young oak or ash tree, into the end of which, where the roots had been rounded off, a quantity of molten lead was poured, making the shillelagh more formidable in such hands than a sword would have been – much harder to parry, and impossible to break.”
Any cudgel, whether or not of Irish origin.