Where does “cercear” come from?

cercear (Old Portuguese) comes from Latin circināre, from Latin circinus, from Latin -īnus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “cercear”, step by step

StepLanguageWordMeaning
1Latincircināre—
2LatincircinusA pair of compasses; a tool for measuring...
3Latin-īnusof or pertaining to; -ine
4Proto-Italic-īnosof/belonging to
5Proto-Indo-European-iHnosCreates adjectives of materials
6Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European -no- →Every word from Latin -īnus →Every word from Proto-Italic -īnos →