This is the 728th most frequent Indonesian word.
namanya
"Namanya" means "his/her/its name" or "the name is."
Here, 'namanya' is a possessive pronoun construction ('nama' + '-nya'), meaning 'his/her name'.
Namanya adalah Budi.
His/Her name is Budi.
In this context, 'namanya' similarly refers to someone's name, signifying possession.
Saya lupa namanya.
I forgot his/her name.
'Namanya' in this sentence also means 'its name,' referring to possession of the subject 'that animal'.