Origin of the name "Carinio"

I speak Spanish as a second language. Cariño - pronounced (kareenyo) refers to the child like sentiment of love toward say a teddy bear. There is no English equivalent. I looked the word up in my Spanish dictionary and it says - affection, fondness, tenderness, kindness. I looked in (http://spanishetym.com/directory/c?page=6) for root meanings. One lead says "Roberts (2014) believes the source was from cariñar "to miss," a word endemic to Aragon. Alternatively, the word may come from Aragonese cariño 'id.' Both proposed etymologies likely come from Latin carere "to lack" (see carecer a word which directly derives from this verb)."
Since in Spanish cariño has the masculine "o" ending - I thought it odd since words associated with intimacy are linguistically a more feminine trait in Spanish. I would expect the word to end in "a".

Perhaps this word is associated with "caress" in English. Chambers Etymological Dictionary points to (Italian) carezza - endearment, (Latin) carus - dear [see charity]

if you take a look at the town of Cariño in Galicia you will note its kidney like shape. The word would seem to mean 'affectionate'.
go to wales you will see Ca'er/cadair at the beginning of placenames. In Ireland you will find caher. it means seat or chair from cathaoir. There is always a fort near by like cahersiveen for example. Riño means kidney. originally it may have been caer-riño. high seat shaped like a kidney.

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