Where does “self-incriminate” come from?
self-incriminate (English) comes from English incriminate, from Medieval Latin incriminatus, from Latin incrimino, from Latin crimino, from Latin crīmen, from Proto-Italic kreimen, from Proto-Indo-European kréymn̥, from Proto-Indo-European krey- — to sift, separate, divide.
self-incriminate (English): To incriminate oneself
Ancestry of “self-incriminate”, step by step