Civilian
来自Big Physics
late Middle English (denoting a practitioner of civil law): from Old French civilien, in the phrase droit civilien ‘civil law’. The current sense arose in the early 19th century.
wiktionary
From Middle English cyvylien, from Old French civilien.
etymonline
civilian (n.)
late 14c., "judge or authority on civil law," from noun use of Old French civilien "of the civil law," created from Latin civilis "relating to a citizen, relating to public life, befitting a citizen; popular, affable, courteous," alternative adjectival derivative of civis "townsman" (see city). Sense of "non-military and non-clerical person, one whose pursuits are those of civilian life" is attested by 1766. As an adjective, "pertaining to or characteristic of a civilian," from 1640s.
