Where does “binocular” come from?

binocular (Portuguese) comes from Portuguese ocular, from Latin oculāris, from Latin oculus, from Proto-Italic okʷelos, from Proto-Indo-European h₃ókʷs, from Proto-Indo-European h₃ekʷ- — to see; eye.

binocular (Portuguese): binocular; to observe using binoculars

Definitions

  1. binocular; to observe using binoculars

Ancestry of “binocular”, step by step

binocular traces back through two separate lines of ancestry.

via Portuguese ocular

StepLanguageWordMeaning
1Portugueseocularocular, pertaining to the eyes
2Latinoculārisof or pertaining to the eyes, ocular
3LatinoculusAn eye; the power of sight; a spot resembling an...
4Proto-Italicokʷeloseye
5Proto-Indo-Europeanh₃ókʷseye
6Proto-Indo-Europeanh₃ekʷ-to see; eye

via Portuguese binóculos

StepLanguageWordMeaning
1Portuguesebinóculosplural of binóculo
Every word from Proto-Indo-European h₃ekʷ-Every word from Proto-Indo-European h₃ókʷsEvery word from Proto-Italic okʷelos