Where does “caga-lume” come from?

caga-lume (Portuguese) comes from Portuguese vagar, from Old Portuguese vagar, from Latin vagor, from Latin -or, from Proto-Italic -ōs, from Proto-Indo-European -ōs, from Proto-Indo-European -oss, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

Ancestry of “caga-lume”, step by step

caga-lume traces back through two separate lines of ancestry.

via Portuguese vagar

StepLanguageWordMeaning
1Portuguesevagarto wander; Alternative form of vacar
2Old Portuguesevagar
3LatinvagorI ramble, wander, stroll about, roam, rove; I...
4Latin-orused to form a third-declension masculine...
5Proto-Italic-ōsCreates masculine action nouns or result nouns...
6Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
7Proto-Indo-European-oss
8Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via Portuguese lume

StepLanguageWordMeaning
1Portugueselumeflame, fire; lumen
2Old Portugueselume
3Latinlumenlight; the eyes; daylight
4Proto-Indo-Europeanlewk-s-menlight
5Proto-Indo-Europeanlewk-bright; to shine; to see
Every word from Proto-Indo-European -osEvery word from Latin -orEvery word from Latin vagor