Where does “Bozüyük” come from?

Bozüyük (Turkish) comes from Turkish Boz, from Ottoman Turkish boz, from Ottoman Turkish بوز, from Turkish büz, from French buse, from Old French buison, from Old French bois, from Frankish busk — to become, grow, appear.

Ancestry of “Bozüyük”, step by step

Bozüyük traces back through two separate lines of ancestry.

via Turkish Boz

StepLanguageWordMeaning
1TurkishBozgrizzle
2Ottoman Turkishboz
3Ottoman Turkishبوزice; gray; Alternative form of بز
4Turkishbüza large-sized water pipe generally made of...
5Frenchbusehawk or buzzard; idiot, fool; fail
6Old Frenchbuisonbush
7Old Frenchboiswoodland; woods
8Frankishbuskbush; bush, thicket
9Proto-Germanicbuskazbush; thicket
10Proto-Indo-EuropeanbʰuH-to become, grow, appear

via Turkish üyük

StepLanguageWordMeaning
1Turkishüyük
Every word from Proto-Indo-European bʰuH-Every word from Proto-Germanic buskazEvery word from Frankish busk