Morpheme
Duch
Type
bound base
Denotation
leader, rule, commander
Etymology
Middle English duch-; Anglo-Norman duch-; Old French duch-, duc; Latin ducem, from dux, from dūcere
Evidence
archduchess, duchess, duchessdom, duchesse, duchessed, duchesses, duchesshood, duchessing, duchesslike, duchessly, duchessness, duchessy, duchies, duchy
Notes
duchess, duchesse, dogess, and dogaressa are doublets
See Also
Duce, Dux, Duke, Duc, Doge, Dogare