Where does “สัจพจน์” come from?

สัจพจน์ (Thai) comes from Thai พจน์, from Pali vacana, from Sanskrit वचन, from Sanskrit वच्, from Proto-Indo-European wekʷ- — to speak, to sound out.

สัจพจน์ (Thai): axiom

Definitions

  1. axiom

Ancestry of “สัจพจน์”, step by step

สัจพจน์ traces back through two separate lines of ancestry.

via Thai พจน์

StepLanguageWordMeaning
1Thaiพจน์word; speech; number
2Palivacanautterance
3Sanskritवचनspeaking; eloquent; speaking, utterance
4Sanskritवच्to speak, utter, say
5Proto-Indo-Europeanwekʷ-to speak, to sound out

via Thai สัจ

StepLanguageWordMeaning
1Thaiสัจ
Every word from Proto-Indo-European wekʷ-Every word from Sanskrit वच्Every word from Sanskrit वचन