1) Irish boy name 2) Scottish surname 3) The Comic actor Jerome 4) The Fountainhead actor Jerome 
• (n.) One who works as a mason without having served a regular apprenticeship.
Someone who has not been initiated. May or may not be used derogatorily. 
One who is not of the pagan paths; one who does not practice magick.
Cow'an (kou' a n) noun [ Confer Old French couillon a coward, a cullion.] One who works as a mason without having served a regular apprenticeship. [ Scot.] Among Freemasons, it is a cant term for pretender , interloper .