1) A physician or doctor, in use in Old English and recorded as a by-name from the thirteenth century.
1379 Thomas Leche, medic’, Howden
1445 John Stevynson, leche, York
1552 To John Clerkeson xs which [he]laid downe for me to the leech, Garforth. It could be used also of women: 1524 a howsse that a lyche woman was in, York.