English

gut up

From gut + up, influenced by expressions like man up and shut up.

A compound of gut + up

Proto-Indo-European *ǵʰewd- ‘to pour’

Proto-Germanic *gut-

Old English gutt ‘gut, entrail’

Middle English gut

English gut

Proto-Germanic *upp ‘up’

Proto-West Germanic *upp

Old English upp

Middle English up ‘to a vertical axis’

English up

The story

From gut + up, influenced by expressions like man up and shut up.

verb To show courage and hide one's apprehension.

Language periods are conventional ranges, not dates for this word.