Of or relating to the Cluniac order or the monastery of Cluny; following the reforms instituted by Cluny Abbey.
From Cluny plus -acensian or -iacensian (a Latinate suffix forming adjectives). This is a more formal, scholarly variant of 'Cluniac,' created using learned Latin-style suffix conventions common in academic and ecclesiastical writing.
The -iacensian ending sounds very scholarly and official because it's directly borrowed from medieval Latin church documents—monks and scholars writing in Latin would use this form when discussing the Cluniac order in formal theological texts, and the English learned form preserves that high-register tone.
Complete word intelligence in one call. Free tier — 50 lookups/day.