Similar word to servility:

bondage, bullwork, captivity, chains constraint, drudge, drudgery, enslavement, enthrallment, feudalism, grind, helotry, indenture, labor, menial labor, moil, peonage, restraint, serfdom, serfhood, servileness, servitude, subjection, subjugation, thrall, thralldom, toil, vassalage, villeinage, work, yoke