Where does “ความใจหมา” come from?

ความใจหมา (Thai) comes from Thai ใจหมา, from Thai ใจ, from Proto-Tai cɤɰᴬ — heart; breath.

Ancestry of “ความใจหมา”, step by step

ความใจหมา traces back through two separate lines of ancestry.

via Thai ใจหมา

StepLanguageWordMeaning
1Thaiใจหมาlow-hearted: morally reprehensible, cowardly, or untrustworthy
2Thaiใจheart; mind; spirit; breath
3Proto-Taicɤɰᴬheart; breath

via Thai ความ

StepLanguageWordMeaning
1Thaiความaffair; matter; content; essence; subject;...
2Proto-Taiɣwaːmᴬmatter
Every word from Proto-Tai cɤɰᴬ →Every word from Thai ใจ →Every word from Thai ใจหมา →