Helvetius

== Latin == === Etymology === A Celtic name, from Gaulish elu (“gain, prosperity”), from Proto-Celtic *ɸelus, from Proto-Indo-European *pelh₁u- (“many”); and etu- (“terrain, grassland”), which is cognate with Old Irish íath (“grassland, territory”). === Pronunciation === (Classical Latin) IPA(key): [hɛɫˈweː.ti.ʊs] (modern Italianate Ecclesiastical) IPA(key): [elˈvɛt.t͡si.us] === Adjective === Helvētius (feminine Helvētia, neuter Helvētium); first/second-declension adjective of or pertaining to the Helvetii; Helvetian ==== Declension ==== First/second-declension adjective. === Noun === Helvētius m sg (genitive Helvētiī or Helvētī, feminine Helvētia); second declension member of the Helvetii ==== Declension ==== First/second-declension adjective. === References === Helvetius in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879. Stifter, David (2008). Old Celtic Languages p. 14 Xavier Delamarre (Éditions Errance, 2003). Dictionnaire de la langue gauloise, pp. 162 and 168.