calve

(intransitive) to give birth to a calf

(intransitive) to assist in a cow's giving birth to a calf

(transitive) to give birth to (a calf)

(intransitive, figuratively, especially of an ice shelf, a glacier, an ice sheet, or even an iceberg) to shed a large piece, e.g. an iceberg or a smaller block of ice (coming off an iceberg)

(intransitive, figuratively, especially of an iceberg) to break off

(transitive, figuratively, especially of an ice shelf, a glacier, an ice sheet, or even an iceberg) to shed (a large piece, e.g. an iceberg); to set loose (a mass of ice), e.g. a block of ice (coming off an iceberg)