Misshapen head or helmeted head
Kennady is a modern spelling variant of the Irish surname Kennedy. It is derived from the Gaelic name Cinnéidigh, composed of the elements 'ceann' (head) and 'éidigh' (ugly or armored). While the literal etymology is less than flattering, the name is strongly associated with the American political dynasty, lending it a sense of prestige.
US births per 5-year period, 1990–present (SSA data).