Where does “perspectivo” come from?

perspectivo (Portuguese) comes from Latin perspectīvus, from Latin perspectus, from Latin perspicere, from Latin specere, from Latin specio, from Proto-Italic spekjō, from Proto-Indo-European spéḱyeti, from Proto-Indo-European speḱ- — to see, to look, to observe.

Definitions

Ancestry of “perspectivo”, step by step

StepLanguageWordMeaning
1Latinperspectīvus
2Latinperspectusperceived, discerned; well-known
3Latinperspicerepresent active infinitive of perspiciō;...
4Latinspecerepresent active infinitive of speciō;...
5LatinspecioI observe, watch, look at
6Proto-Italicspekjōto observe, to see
7Proto-Indo-Europeanspéḱyetito be looking at, to keep looking at
8Proto-Indo-Europeanspeḱ-to see, to look, to observe
Every word from Proto-Indo-European speḱ-