factioneer1
/ˌfakʃəˈnɪə/noun
= factionalist.
Origin
Early 18th century; earliest use found in Light to Blind. From faction + -eer.
factioneer2
/ˌfakʃəˈnɪə/Somewhat rare
verb
[no object] To support or conspire in a faction; to split into factions.
Origin
Mid 19th century. From factioneer.