đếch

Etymology
Compare 🇨🇬 (whence 🇨🇬 tɛʔ). Semantically, compare.

The regularly corresponded Vietnamese form would be the less common, with đếch arose through euphemism then became the dominant form. The form developed further by dropping final consonant as euphemism, which then again becoming vulgar.

Adverb

 * 1)  not