Where does “ความสำเร็จ” come from?

ความสำเร็จ (Thai) comes from Thai ความ, from Proto-Tai ɣwaːmᴬ — matter.

ความสำเร็จ (Thai): success; accomplishment

Definitions

  1. success; accomplishment

Ancestry of “ความสำเร็จ”, step by step

ความสำเร็จ traces back through two separate lines of ancestry.

via Thai ความ

StepLanguageWordMeaning
1Thaiความaffair; matter; content; essence; subject;...
2Proto-Taiɣwaːmᴬmatter

via Thai สำเร็จ

StepLanguageWordMeaning
1Thaiสำเร็จto accomplish; to succeed; to finish, to complete
Every word from Proto-Tai ɣwaːmᴬEvery word from Thai ความ