geminus

Presumably from Proto-Italic *yemanos, from Proto-Indo-European *yemH- (“twin”), in view of Proto-Celtic *yemonos (Old Irish emon (“twin”)). If this is true, the g- must have been analogically introduced from gignō (“to give birth to”), genus (“offspring”).[1]

• (Classical) IPA^(key): /ˈɡe.mi.nus/, [ˈɡɛmɪnʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈd͡ʒe.mi.nus/, [ˈd͡ʒɛːminus]

geminus (feminine gemina, neuter geminum); first/second-declension adjective

1. (literal) twinborn, twin
   • 27 BCE – 25 BCE, Titus Livius, Ab Urbe Condita I.4:

     cum geminum partum edidisset

     When gave birth to the twin sons

2. (transferred sense)
   1. double, paired, twofold, both, two

      Synonyms: duplex, duo

   2. resembling, similar, like

First/second-declension adjective.

• “geminus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “geminus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• geminus 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)
• geminus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• “geminus”, in Harry Thurston Peck, editor (1898), Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• “geminus”, in William Smith, editor (1848), A Dictionary of Greek and Roman Biography and Mythology, London: John Murray