Where does “Боклев” come from?

Боклев (Bulgarian) comes from Turkish bok, from Arabic بوق, from Old Turkic پوخ, from Proto-Turkic bok — feces; dirt, dung.

Ancestry of “Боклев”, step by step

StepLanguageWordMeaning
1Turkishbokshit
2Arabicبوقtrumpet, conch; presenting falsities deliberately...
3Old Turkicپوخ
4Proto-Turkicbokfeces; dirt, dung
Every word from Proto-Turkic bok