1483, "slave," from M.Fr.
serf, from L.
servum (nom.
servus) "slave" (see
serve). Fallen from use in original sense by 18c. Meaning "lowest class of cultivators of the soil in continental European countries" is from 1611. Use by modern writers with ref. to medieval Europeans first recorded 1761 (contemporary Anglo-L. records used
nativus, villanus or
servus).
Serfdom first attested 1850.