Where does “ความอัปยศ” come from?

ความอัปยศ (Thai) comes from Thai อัปยศ, from Sanskrit अपयश, from Sanskrit यश, from Sanskrit यशस्, from Proto-Indo-Aryan yáśas, from Proto-Indo-Iranian yáćas, from Proto-Indo-European yékos, from Proto-Indo-European yek- — to utter.

Ancestry of “ความอัปยศ”, step by step

ความอัปยศ traces back through two separate lines of ancestry.

via Thai อัปยศ

StepLanguageWordMeaning
1Thaiอัปยศinfamous; dishonourable; disgraceful; disreputable; inglorious; shameful; embarrassing
2Sanskritअपयश
3Sanskritयशfame; honour
4Sanskritयशस्glory, fame, renown; honor; beautiful appearance,...
5Proto-Indo-Aryanyáśas
6Proto-Indo-Iranianyáćasglory, fame, renown; dignity, honor
7Proto-Indo-Europeanyékos
8Proto-Indo-Europeanyek-to utter

via Thai ความ

StepLanguageWordMeaning
1Thaiความaffair; matter; content; essence; subject;...
2Proto-Taiɣwaːmᴬmatter
Every word from Proto-Indo-European yek-Every word from Proto-Indo-European yékosEvery word from Proto-Indo-Iranian yáćas