What is one who works as a mason without having served a regular apprenticeship. [Scot.] Note: Among Freemasons, it is a cant term for pretender, interloper called?

cowan — One who works as a mason without having served a regular apprenticeship. [Scot.] Note: Among Freemasons, it is a cant term for pretender, interloper. (Webster's 1913.)

Sources