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común (Adjective) "common"
13th cent. From Latin communis 'id.' Old Latin comoinis. From com-, an intensifying prefix (see co-), and munus "duty." Developing from a sense of having a common (military) duty to a general adjective meaning common. From Proto-Italic *moini- 'id.' From Proto-Indo-European *h2moi̯-no- "exchange," "value." From the root *h2mei̯- "to exchange."
Indo-European
Romance
Portuguese comum, Galician común, Catalan comú, French commun, Italian comune, Romanian comun
Italic
Oscan múinik, Umbrian muneklu "contribution"
Celtic
Old Irish móin "value," Welsh mwyn 'id.'
Germanic
Gothic ga-mains "common," Old High German gi-meins 'id.,' Old Saxon gi-mēni 'id.,' Old English ge-mǣne 'id.,'
Balto-Slavic
Old Church Slavonic měna, Lithuanian maĩnas "exchange"
Indo-Iranian
Sanskrit mení- "revenge," Young Avestan maēini- "punishment"