subdean means an under dean; the deputy or substitute of a dean. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From sub- + dean.
noun
- An under dean; the deputy or substitute of a dean.“Whenever the dean and chapter confirm any act, that such confirmation may be valid, the dean must join in person, and not in the person of a deputy or sub-dean only.”