caupo

Latin

Cognate with Ancient Greek κᾰ́πηλος (kápēlos), possibly from Pre-Greek, likely borrowed separately. A derivation of either from Proto-Indo-European *kʷreyh₂- (“to buy”), whence ἐπρῐάμην (epriámēn) as suppletive aorist of ὠνέομαι (ōnéomai, “to buy”), seems far-fetched. Beekes mentions, Furnee offers Hittite 𒄩𒀊𒉺𒅈 (ḫappar, “purchase, price”) as a comparandum, in which case the IE derivation would be *h₃ep-, whence ops (“power”) and Homeric Ancient Greek ἀφνειός (aphneiós, “rich, wealthy”), although also speculative. Gemoll considers a connection to Ancient Greek κάπτω (káptō, “gulp down, snap”).

caupō m (genitive caupōnis, feminine caupōna); third declension

→ Proto-Germanic: *kaupô (“innkeeper; merchant”) (see there for further descendants)

“caupo”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
“caupo”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
caupo in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
caupo in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
“caupo”, in Harry Thurston Peck, editor (1898), Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
“caupo”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin
Furnée, Edzard Johan (1972) Die wichtigsten konsonantischen Erscheinungen des Vorgriechischen (Janua linguarum. Series practica; 150) (in German), The Hague and Paris: Mouton, page 302
Wilhelm Gemoll: Griechisch-deutsches Schul- und Handwörterbuch. öbv & hpt / Oldenbourg, Vienna and Munich ⁹1965, p. 407.