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Poder etymology

Spanish

Spanish word poder comes from Latin sum ((copulative) I am, exist, have (with dative).), Latin -ius, Proto-Italic *potis

Detailed word origin of poder

Dictionary entry Language Definition
sum Latin (lat) (copulative) I am, exist, have (with dative).
-ius Latin (lat) Genitive suffix for some irregular pronouns. Forming adjectives from nouns.
*potis Proto-Italic (itc-pro)
potis Latin (lat) Able, capable, possible.
possum Latin (lat) I am able, can.
*potēre Vulgar Latin (la-vul)
poder Spanish (es) (El Salvador, colloquial, reflexive) to be familiar with something, or with somebody's personality. To be able, can Authorization. Power, reign. Proxy (written certificate of authority to act for another).