Rare or archaic; chiefly literary usage meaning ‘to imprison’.
The king threatened to prison anyone who spoke against him.
Le roi menaçait d’emprisonner quiconque parlait contre lui.
Synonyms
take into custody
put behind bars
lock up
Used attributively before a noun to denote relation to prisons; non-gradable.
The minister promised sweeping prison reform measures.
Le ministre a promis de vastes mesures de réforme pénitentiaire.