bailiff: [13] Latin bājulus meant literally ‘carrier’ (it is probably the ultimate source of English bail in some if not all of its uses). It developed the metaphorical meaning ‘person in charge, administrator’, which passed, via the hypothetical medieval adjectival form *bājulīvus, into Old French as baillif, and hence into English. => bail[bailiff etymology, bailiff origin, 英语词源]