Where does “ความปากหมา” come from?

ความปากหมา (Thai) comes from Thai ปากหมา, from Thai ปาก, from Thai กา, from Thai กากบาท, from Thai บาท, from Pali pāda, from Sanskrit पाद, from Proto-Indo-Aryan pā́ts — to walk, to step; to stumble, to fall.

Ancestry of “ความปากหมา”, step by step

ความปากหมา traces back through two separate lines of ancestry.

via Thai ปากหมา

StepLanguageWordMeaning
1Thaiปากหมาbad-mouthed; foul-mouthed
2Thaiปากmouth; brim
3Thaiกาcrow; teapot; to make or write a cross symbol
4Thaiกากบาทcross symbol; plus symbol; Thai fourth tone mark
5Thaiบาทpriest; foot; an honorific for or term of address...
6Palipādafoot; foot of a mountain; foot of a verse; a...
7Sanskritपादthe foot; the foot or leg of an inanimate object,...
8Proto-Indo-Aryanpā́ts
9Proto-Indo-Iranianpā́tsfoot
10Proto-Indo-Europeanpṓdsfoot
11Proto-Indo-Europeanpódsfoot
12Proto-Indo-Europeanped-to walk, to step; to stumble, to fall

via Thai ความ

StepLanguageWordMeaning
1Thaiความaffair; matter; content; essence; subject;...
2Proto-Taiɣwaːmᴬmatter
Every word from Proto-Indo-European ped-Every word from Proto-Indo-European pódsEvery word from Proto-Indo-European pṓds
ความปากหมา — Etymology, Origin & Word History | Etymology Explorer