Where does “oscuro” come from?

oscuro (Old Portuguese) comes from Latin obscurus, from Italian scuro, from Italian oscuro, from Latin obscūrus, from Latin ob-, from Latin obolus, from Ancient Greek ὀβολός, from Ancient Greek ὀβελός — to throw, reach, pierce; to hit by throwing.

Ancestry of “oscuro”, step by step

StepLanguageWordMeaning
1Latinobscurusdark, dusky, shadowy; indistinct, unintelligible,...
2Italianscurodark, deep, sombre, swarthy; dark, sombre, grim,...
3Italianoscurofirst-person singular present of oscurare; dark;...
4Latinobscūrusdark, dusky, shadowy
5Latinob-towards; against
6Latinobolusobolus (Greek coin)
7Ancient Greekὀβολόςobol, obolus, used at Athens as both a weight and...
8Ancient Greekὀβελόςa spit, rod; a horizontal line
9Ancient Greekβέλοςmissile, arrow, dart; weapon; something quickly...
10Proto-Indo-EuropeangʷélHos
11Proto-Indo-EuropeangʷelH-to throw, reach, pierce; to hit by throwing
Every word from Proto-Indo-European gʷelH-Every word from Latin ob-Every word from Latin obscūrus