Where does “ການລົງທຶນ” come from?

ການລົງທຶນ (Lao) comes from Lao ລົງທຶນ, from Lao ລົງ, from Proto-Tai n̩.loŋᴬ — to descend.

Ancestry of “ການລົງທຶນ”, step by step

StepLanguageWordMeaning
1Laoລົງທຶນto invest
2Laoລົງto go down, descend, sink; "used with other verbs...
3Proto-Tain̩.loŋᴬto descend
Every word from Proto-Tai n̩.loŋᴬEvery word from Lao ລົງEvery word from Lao ລົງທຶນ