"Pee-leg-gosh", of Hebrew origin, a "purchased wife". She is supposed to be monogamous, but, her husband probably "permanently hired" her because his first wife could not have children. Or, his first wife may have hired her, in which case the children would belong to the first wife. Kind of like a surrogate mother, but, surrogate mother & wife.
Nowadays, "players" (players are honest about womanizing, whereas cheaters hide it) use pilegash as a term for extra wives (polygyny). Some are Fundementalist Mormons.
by Kahdlibber October 15, 2017