What is the X in X-mas?
1570s, "to put a cork sole on a shoe," from cork (n.)). Meaning "to stop with a cork" is from 1640s. Related: Corked; corking.
place in Ireland, anglicized from Irish Corcaigh, from corcach "marsh."
[entry form 1920s+; perhaps fr the violence of an oil well that blows as a gusher]