arrhas
Wordlist from Comphistsem Frankfurt, Jan. 2016:
f GEN sg | f ACC pl arrha
Helmut Schmid's TreeTagger with Latin data by Gabriele Brandolini: arrha N:acc
Georges, Ausführliches lateinisch-deutsches Handwörterbuch, 8. Aufl. (1913)
arrha, arrhabo, s. arra.
Lewis & Short, A latin dictionary (1879)
arrha, arrha, ae, f., and arrhăbo (also without aspiration arra and arrăbo), ōnis, m. (the latter form ante-class.; cf. Gell. 17, 2, 21; in Cic. the word is never used), = ἀρραβών [from the Heb. from , to give security], (show full text)
Gaffiot, Dictionnaire latin-français (2016, ex 1934), merci à G. Gréco, M. De Wilde, B. Maréchal, K. Ôkubo!
arrha arrha, arrhăbō, arrhālis, v. arra, etc.
Дворецкий И.Х., Отличный латинско-русский словарь (1976)
arrha arrha, ae f v. l. = arra.
Latinitatis medii aevi lexicon Bohemorum (thanks to the Centre for Classical Studies at the Institute of Philosophy of the Czech Academy of Sciences (www.ics.cas.cz/en)) (2017)
arrha arrha v. 1. arra
Köbler, Gerhard, Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter (thanks to the author, http://www.koeblergerhard.de/Mittellatein-HP/VorwortMlat-HP.htm) (2010)
arrha arrha, lat., F.: Vw.: s. arra