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saber (Verb) "to know"
8th cent. Very Old Spanish saber "to know," "to be flavorful." From Latin sapere "to taste," but in Vulgar Latin with a sense of "to know." From Proto-Italic *sap-i- "to taste," "to know." From Proto-Indo-European *sHp-i̯- 'id.'
Indo-European
Romance
Asturian saber, Portuguese saber, Galician saber, Catalan saber, French savoir, Italian sapere, Sardinian sapere
Italic
Oscan sipus "knowledge," Volscian sepu "through knowledge"
Germanic
Old Norse sefi "mind," Old High German int-seffen "to taste," Old Saxon an-sebbian "to notice," Old English sefa "understanding"
Hellenic
Ancient Greek ἕπω (hépo) "I am busy"
Indo-Iranian
Sanskrit sápati "to mind," Avestan haftī "he holds"