Baba is the word for father in a bunch of languages.

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:

father: Albanian, Arabic, Western Armenian, Chinese, Hindi, Urdu, Punjabi, Bengali, Greek, Marathi, Marshallese, Mingrelian, Nepali, Persian, Swahili, Turkish, Yoruba, Shona, Zulu  
grandmother: many Slavic languages (such as Bulgarian, Czech, Russian, Serbo-Croatian and Polish; a doublet of bubbe), Romanian, Yiddish, Japanese  
grandfather: Azerbaijani, Zulu (father, grandfather)  
baby: Afrikaans, Sinhala, Hungarian  

You can hear the zulu one in the opening lines of The Lion King song Circle of Life. 

"Nants ingonyama bagithi baba." literally means "hear comes the lion, father"