Surgeon
Middle English: from Anglo-Norman French surgien, contraction of Old French serurgien, based on Latin chirurgia, from Greek kheirourgia ‘handiwork, surgery’, from kheir ‘hand’ + ergon ‘work’.
wiktionary
From Middle English surgien, borrowed from Anglo-Norman surgien, sirogen (Old French surgien et al.), from Vulgar Latin *chīrurgiānus, from Latin chīrūrgia(“surgery”), from chīrurgus(“surgeon”), borrowed from Ancient Greek χειρουργός(kheirourgós), from χείρ(kheír, “hand”) + ἔργον(érgon, “work”).
etymonline
surgeon (n.)
c. 1300, sorgien, cirurgian "person who heals by manual operation on the patient," from Anglo-French surgien (13c.), from Old French surgien, cirurgien (13c.), from cirurgie "surgery," from Latin chirurgia "surgery," from Greek kheirourgia, from kheirourgos "working or done by hand," from kheir "hand" (from PIE root *ghes- "the hand") + ergon "work" (from PIE root *werg- "to do").