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jurar (Verb) "to swear (an oath)"
12th cent. From Latin iurare 'id.' From Proto-Italic *jowes-ā-je 'id.' From the noun *jowes- "oath." From Proto-Indo-European *h2oi̯-u̯- "lifetime," "life force" (see joven).
Indo-European
Romance
Asturian xurar, Portuguese jurar, Galician xurar, Catalan jurar, French jurer, Italian giurare, Aromanian giur, Romanian jura, Sardinian giurài
Celtic
Old Irish uisse "fitting"