Where does “ความผูกพัน” come from?

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

Ancestry of “ความผูกพัน”, step by step

ความผูกพัน traces back through two separate lines of ancestry.

via Thai ความ

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

via Thai ผูกพัน

StepLanguageWordMeaning
1Thaiผูกพันto concern (oneself with), relate (oneself to), or worry (oneself about) because of a certain feeling, as love, adoration, admiration, etc; to be concerned, related, or worried because of such feeling
2Thaiพัน1000; to bind; to tie round
Every word from Proto-Tai ɣwaːmᴬ