Where does “bazguki” come from?

bazguki (Tumbuka) comes from Tumbuka -i, from Proto-Bantu -ì — Forms agent nouns from verbs.

Ancestry of “bazguki”, step by step

StepLanguageWordMeaning
1Tumbuka-iForms agent nouns from verbs
2Proto-Bantu-ìForms agent nouns from verbs
Every word from Proto-Bantu -ì →Every word from Tumbuka -i →