1560s, from slave (n.) + -ish. Sense of "servilely imitative, lacking originality or independence" is from 1753. Related: Slavishly; slavishness.
a slavish copy of the original
slavish devotion to her job ruled her life
slave
Slave
slaver
slavery
Slavic
slavish
slavocracy
slaw
slay
slayer
sleave