pluck up
verb
transitive verb
1
: to assume an appearance of : bring to the fore : summon
plucked his nerve up to demand an explanation
2
: to eradicate by or as if by tearing up by the roots
intransitive verb
: to assume an appearance (as of valor) especially in response to a particular stress
Word History
Etymology
Middle English plucken up, from plucken to pluck + up, adverb