Alanus

• (Classical) IPA^(key): /aˈlaː.nus/, [äˈɫ̪äːnʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /aˈla.nus/, [äˈläːnus]

Borrowed from Ancient Greek Ἀλᾱνός (Alānós), Ἀλᾱνοί (Alānoí). Perhaps renewed in Late Latin, especially in Spain in the meaning "dog breed", as a Migration Period Wanderwort, e.g. via Gothic *𐌰𐌻𐌰𐌽𐍃 (*alans).[1]

• Halānus, Alaunus

Alānus (feminine Alāna, neuter Alānum); first/second-declension adjective

1. of or pertaining to the Alan tribe

First/second-declension adjective.

Alānus m (genitive Alānī, feminine Alāna); second declension

1. Alan (a member of the Alan tribe)
2. (Medieval Latin) alaunt (an extinct hunting dog breed related to the modern bulldog and mastiff)

First/second-declension adjective.

• Alānia

Note: none are likely to be directly inherited.

Unclear origin. Perhaps Latinization of a Celtic name such as Old Breton Alan, belonging to several Breton saints and borrowed as English Alan and French Alain. This could be connected with Irish ail (“noble”), or else has been borrowed by Breton from the word under Etymology 1.[2]

Alānus m (genitive Alānī, feminine Alana); second declension

1. (Medieval Latin) a male given name, equivalent to English Alan

Second-declension noun.

• Walther von Wartburg (1928–2002) “*alanus”, in Französisches Etymologisches Wörterbuch (in German), volumes 24: Refonte A–Aorte, page 289
• “Alanus”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

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