Where does “คืนนี้” come from?

คืนนี้ (Thai) comes from Thai นี้, from Proto-Tai najᶜ — this.

คืนนี้ (Thai): tonight, this night, this evening

Definitions

  1. tonight, this night, this evening

Ancestry of “คืนนี้”, step by step

คืนนี้ traces back through two separate lines of ancestry.

via Thai นี้

StepLanguageWordMeaning
1Thaiนี้this; these
2Proto-Tainajᶜthis

via Thai คืน

StepLanguageWordMeaning
1Thaiคืนnight; to be or cause to be back: to return; to...
2Proto-Taiɣɯːnᴬnight
Every word from Proto-Tai najᶜEvery word from Thai นี้