From Ancient Greek ἀρραβών (arrhabṓn, “down payment, guarantee”), from Biblical Hebrew עירבון / עֵרָבוֹן (ʿērāḇōn, “guarantee, deposit”) (earlier *ʿirrabōn).

• (Classical Latin) IPA^(key): [ˈar.rʰa.boː]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈar.ra.bo]

arrhabō m (genitive arrhabōnis); third declension

1. money given to ratify a contract; a deposit or pledge

Third-declension noun.

• arrha

• pignus

• “arrhabo”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “arrhabo”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.