Where does “martelo” come from?

martelo (Portuguese) comes from Old Portuguese martelo, from Latin martellus, from Latin Mārculus, from Latin Mārcus, from Latin Martīnus, from Latin -īnus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos — adjectival suffix.

martelo (Portuguese): hammer; the malleus

Definitions

hammer; the malleus

Ancestry of “martelo”, step by step

Step	Language	Word	Meaning
1	Old Portuguese	martelo	—
2	Latin	martellus	hammer
3	Latin	Mārculus	small hammer, hammer
4	Latin	Mārcus	—
5	Latin	Martīnus	—
6	Latin	-īnus	of or pertaining to; -ine
7	Proto-Italic	-īnos	of/belonging to
8	Proto-Indo-European	-iHnos	Creates adjectives of materials
9	Proto-Indo-European	-no-	adjectival suffix

Every word from Proto-Indo-European -no- →Every word from Latin -īnus →Every word from Latin Martīnus →