factio

From faciō (“I make, do”) +‎ -tiō (action noun suffix), with a metaphorical primary meaning.

• (Classical) IPA^(key): /ˈfak.ti.oː/, [ˈfäkt̪ioː]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈfak.t͡si.o/, [ˈfäkt̪͡s̪io]

factiō f (genitive factiōnis); third declension

1. a political faction, a group of people acting together
   • 2003, Hannelore Zöllner, Eximia victoria Stoiberiana , Nuntii Latini Radio Bremen, Septembris 2003

     Christiana Unio Socialis tantam victoriam assecuta est, quantam in Germania nulla umquam factio ex electionibus liberis tulerat: abhinc Bavariam regere poterit duabus partibus [2/3] legatorum nisa.

     The Christian Social Union has achieved a victory that no other party in Germany has carried out: henceforth it will rule Bavaria holding two thirds of the legislature.

2. a company of charioteers
3. (rare) an act of making or doing; a preparation

Third-declension noun.

• testāmentī factiō

Borrowings

• “factio”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “factio”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• factio 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)
• factio in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎, London: Macmillan and Co.
  • a party; faction: factio (of aristocrats)