Auctor

Etymology: Medieval Latin, derived from Latin auctus, from augeō ‎(“to increase, nourish”).

Among the Romans the seller was called auctor; and public sales were made by fixing a spear in the forum, and a person - an Auctor - who acted as crier, stood by the spear.

1 (Medieval Latin) One who gives increase (hence: an originator, causer, doer, founder)

2 Seller, Vendor

3 Author (figuratively) authorship, agency, encouragement

Pronunciation

(Ecclesiastical) IPA(key): /ˈau̯k.tor/

Noun

auctor m ‎(genitive auctōris);