Where does “ความเจริญ” come from?

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

Ancestry of “ความเจริญ”, step by step

ความเจริญ traces back through two separate lines of ancestry.

via Thai ความ

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

via Thai เจริญ

StepLanguageWordMeaning
1Thaiเจริญto cultivate; to develop; to enhance; to grow; to...
2Old Khmercren—
Every word from Proto-Tai ɣwaːmᴬ →Every word from Thai ความ →