Where does “Kamphaeng Phet” come from?

Kamphaeng Phet (English) comes from Thai กำแพงเพชร, from Thai เพชร, from Old Khmer bejra, from Sanskrit वज्र, from Sanskrit यान, from Proto-Indo-Aryan yáHnam, from Proto-Indo-Iranian yáHnam, from Proto-Indo-European yéh₂-nom — to go; to go in, enter; to ride, to travel.

Ancestry of “Kamphaeng Phet”, step by step

StepLanguageWordMeaning
1Thaiกำแพงเพชร
2Thaiเพชรdiamond; lightning bolt; thunderbolt; "vajra", a...
3Old Khmerbejra
4Sanskritवज्र"the hard or mighty one", a thunderbolt; a...
5Sanskritयानcarriage, vehicle, mode of transport; moving,...
6Proto-Indo-AryanyáHnam
7Proto-Indo-IranianyáHnam
8Proto-Indo-Europeanyéh₂-nom
9Proto-Indo-Europeanyeh₂-to go; to go in, enter; to ride, to travel
Every word from Proto-Indo-European yeh₂-Every word from Proto-Indo-European yéh₂-nomEvery word from Proto-Indo-Iranian yáHnam