REFORMATORY, REFORM SCHOOL
NOUNS
1889 ► a reformatory for juvenile criminals → GAMMONING ACADEMY → UK criminals’ sl. obs.
L19 ► a term of confinement in a reformatory → SCHOOLING → sl.
1920 ► a juvenile reformatory → LITTLE SCHOOL → US criminals’ sl.
NOUNS, PERSON
20C ► the principal keeper at a reformatory → P.K. → UK sl.
Lexicophilia 