Where does “pontinho” come from?

pontinho (Portuguese) comes from Portuguese Ponto, from Old Portuguese ponto, from Latin pūnctum, from Latin punctus, from Latin -tus, from Proto-Italic -tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

Ancestry of “pontinho”, step by step

StepLanguageWordMeaning
1PortuguesePontoPontus god of the sea
2Old Portugueseponto—
3Latinpūnctumpoint
4Latinpunctuspricked, punctured, pierced, having been pricked;...
5Latin-tusForms the past participle of verbs; Forms...
6Proto-Italic-tus—
7Proto-Indo-European-tusDerives action nouns from verb roots
Every word from Proto-Indo-European -tus →Every word from Latin -tus →Every word from Latin punctus →