Where does “ครึ่งวงกลม” come from?

ครึ่งวงกลม (Thai) comes from Thai วงกลม, from Thai วง, from Old Khmer វាង៑, from Proto-Mon-Khmer wa(a)ŋ — enclosure.

ครึ่งวงกลม (Thai): semicircle (shape)

Definitions

  1. semicircle (shape)

Ancestry of “ครึ่งวงกลม”, step by step

ครึ่งวงกลม traces back through two separate lines of ancestry.

via Thai วงกลม

StepLanguageWordMeaning
1Thaiวงกลมcircle
2Thaiวงcircle; oval; round or elliptical object
3Old Khmerវាង៑—
4Proto-Mon-Khmerwa(a)ŋenclosure

via Thai ครึ่ง

StepLanguageWordMeaning
1Thaiครึ่งhalf
2Proto-Taiɡrɤŋᴮhalf
Every word from Proto-Mon-Khmer wa(a)ŋ →Every word from Old Khmer វាង៑ →Every word from Thai วง →
ครึ่งวงกลม — Etymology, Origin & Word History | Etymology Explorer