Pure

adj.

Heard in Tipperary, Cork, Mayo, Cavan, Galway, Donegal, Sligo, Carlow, Derry, Kildare, Limerick, Tyrone and Wicklow

Very or extremely.

In use

Dat lute is pure off the head.

Posh English

That fellow is positively out of his senses.

Same phrase, other counties