Where does “ความลับ” come from?

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

ความลับ (Thai): secret; covertness

Definitions

  1. secret; covertness

Ancestry of “ความลับ”, step by step

ความลับ traces back through two separate lines of ancestry.

via Thai ความ

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

via Thai ลับ

StepLanguageWordMeaning
1Thaiลับto sharpen; hidden from sight; secret
2Proto-Southwestern Tailapᴰ²ˢto sharpen; hidden; secret
Every word from Proto-Tai ɣwaːmᴬ →Every word from Thai ความ →