Where does “Mortensen” come from?

Mortensen (Norwegian) comes from Norwegian Morten, from Danish Morten, from Danish Martin, from Latin Martīnus, from Latin -īnus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “Mortensen”, step by step

StepLanguageWordMeaning
1NorwegianMorten—
2DanishMorten—
3DanishMartin—
4LatinMartīnus—
5Latin-īnusof or pertaining to; -ine
6Proto-Italic-īnosof/belonging to
7Proto-Indo-European-iHnosCreates adjectives of materials
8Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European -no- →Every word from Latin -īnus →Every word from Latin Martīnus →
Mortensen — Etymology, Origin & Word History | Etymology Explorer