Obs. [f. FACTION v. + -ER1.] One who makes or joins a faction; a partisan.
1587. Holinshed, Scot. Chron., II. 440/1. The assemblie did appoint generall fastings especiallie, when some factioner in the countrie was to moue anie great enterprise.
c. 1610. Sir J. Melvil, Mem. (1735), 311. He was advertised by some Factioners, that the Earls of Angus, Mar, and Master of Glammis, had an Enterprize in hand.
1644. Hertegan, Lett., in Carte, Ormonde, III. 360. Ormondes factioners meet every night, and resolve what is to be proposed and concluded for my Lords interests next day.