factionalizeEnglishOxford New American Dictionaryfactionalize /ˈfakSH(ə)nəˌlīz, ˈfækʃ(ə)nəˌlaɪz / (British also factionalise) ▸ verb [no object] (especially of a political party or other organized group) split or divide into factions: there was a tendency for students to factionalize.