Where does “ดม” come from?

ดม (Thai) comes from Thai กระดุม, from Khmer ក្ឌុំ.

ดม (Thai): to smell; to sniff; to beat; to hit; to strike;...

Definitions

Step	Language	Word	Meaning
1	Thai	กระดุม	button
2	Khmer	ក្ឌុំ	—

ดม — Etymology, Origin & Word History | Etymology Explorer