Baba

google

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via French from Polish, literally ‘married peasant woman’.

wiktionary

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As one of the first utterances many babies are able to say, baba (like mama, papa, and dada) has come to be used in many languages as a term for various family members:

etymonline

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baba (n.)

light kind of plum cake, 1827, from French baba (19c.), the word and the thing said by French dictionaries to be from Polish baba.