industrius

Latin

Probably from indu (“in, within”), archaic variation of in, + struō (“build”).^[1]^[2]

Sometimes connected to Old High German ustrī (“industry”), Old English and-ūstrian (“to hate, detest”).

industrius (feminine industria, neuter industrium, comparative industrior or industriior); first/second-declension adjective

	masculine	feminine	neuter	masculine	feminine	neuter
	singular			plural
nominative	industrius	industria	industrium	industriī	industriae	industria
genitive	industriī	industriae	industriī	industriōrum	industriārum	industriōrum
dative	industriō	industriae	industriō	industriīs
accusative	industrium	industriam	industrium	industriōs	industriās	industria
ablative	industriō	industriā	industriō	industriīs
vocative	industrie	industria	industrium	industriī	industriae	industria

^ De Vaan, Michiel (2008), “endo, indu(-), indi- (> Derivatives > industrius)”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 189
^ De Vaan, Michiel (2008), “struō, -ere”, in Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, pages 592-3: “If industrius goes back to *endo-struwo-, this was probably directly built to the verb.”

“industrius”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
“industrius”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
"industrius", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
“industrius”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.