The Martinus Family Name
Spelled Martinus, the surname still points back to Martin. Surname dictionaries give the meaning as “From Martinus, "of Mars"”. The ending -us in Martinus is a typical derivative of the root behind Martin. Spellings drifted because names were written down by ear in parish books, tax rolls and passenger lists. You may also find the name written Maertin, Martijn and Marthin.
Similar-sounding surnames on Herald Lab: Martins, Martines and Martens.
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