Where does “Prachinburi” come from?

Prachinburi (English) comes from Thai ปราจีนบุรี, from Thai ปราจีน, from Sanskrit प्राचीन, from Sanskrit प्राञ्च्, from Sanskrit प्र-, from Proto-Indo-Aryan pra-, from Proto-Indo-Iranian pra-, from Proto-Indo-European pro- — passed , crossed.

Ancestry of “Prachinburi”, step by step

StepLanguageWordMeaning
1Thaiปราจีนบุรี
2Thaiปราจีนeastern
3Sanskritप्राचीनfacing the east, eastward, eastern
4Sanskritप्राञ्च्directed forwards, being in front
5Sanskritप्र-forward, before; forward, forth; in front of
6Proto-Indo-Aryanpra-forth
7Proto-Indo-Iranianpra-toward, forward
8Proto-Indo-Europeanpro-toward, forward
9Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
10Proto-Indo-Europeanper-before, in front; first; to go through
11Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European por-