Master

dominulus

(courtesy title for a boy)

dominus

(someone who has control over something or someone)

dominus

(owner of an animal or slave)

dominus

(captain of a merchant ship)

dominus

(someone who employs others)

dominus

(courtesy title of a man)

dominus

(original of a document or of a recording)

magister

(expert at something)

magister

(tradesman who is qualified to teach apprentices)

nauarchus

(captain of a merchant ship)

nāviculārius

(captain of a merchant ship)