cenobiarch

Simplification of coenobiarch, from Latin coenobiarcha (“abbot”), from Koine Greek κοινοβιάρχης (koinobiárkhēs, “abbot”), from κοινόβιον (koinóbion, “cenobium, monastery”) + ἀρχή (arkhḗ, “rule”) + -ης (-ēs).