investigatione
form analysis and translation based on Perseus (Version 2010):
ABL S F | NOM S F | VOC S F
investigatio N  a searching into, investigation
Helmut Schmid's TreeTagger with Latin data by Gabriele Brandolini: investigatio N:abl
Georges, Ausführliches lateinisch-deutsches Handwörterbuch, 8. Aufl. (1913)
investīgātio, ōnis, f. (investigo), das Aufspüren, Erforschen, naturae, Cic. Acad. 1, 34: rerum occultissimarum, Cic. de fin. 5, 4, 10: veri, Cic. de off. 1, 13 u. 19: sapientiae eius, Vulg. Isai. 40, 28: mentis investigationes, Firm. math. 5, 1, 11.
Lewis & Short, A latin dictionary (1879)
investigatio, investīgātĭo, ōnis, f. investigo, a searching or inquiring into, investigation (class.): rerum occultissimarum, Cic. Fin. 5, 4, 10: veri (with inquisitio), id. Off. 1, 4, 13: sapientiae ejus, Vulg. Isa. 40, 28.
Gaffiot, Dictionnaire latin-français (2016, ex 1934), merci à G. Gréco, M. De Wilde, B. Maréchal, K. Ôkubo!
investigatio investīgātĭō, ōnis, f. (investigo), recherche attentive, investigation : Cic. Ac. 1, 34 ; Fin. 5, 10.
Дворецкий И.Х., Отличный латинско-русский словарь (1976)
investigatio investigatio, onis f [investigo] изыскание, исследование (naturae C).
Köbler, Gerhard, Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter (thanks to the author, http://www.koeblergerhard.de/Mittellatein-HP/VorwortMlat-HP.htm) (2010)
investigatio investīgātio, lat., F.: nhd. Aufspüren, Erforschen, Erforschung, Ermittlung; Q.: Cic. (81-43 v. Chr.), Bi, Cap., Cod. Eur., Conc., Ei, HI, LBai, LRib, LSal, LVis; E.: s. investīgāre; L.: Georges 2, 422, TLL, Walde/Hofmann 2, 774, Heumann/Seckel 287a