Reference for Psalms 44:17

מִ֭קּוֹל מְחָרֵ֣ף וּמְגַדֵּ֑ף מִפְּנֵ֥י א֝וֹיֵ֗ב וּמִתְנַקֵּֽם׃

For the voice of him that taunteth and blasphemeth; by reason of the enemy and the revengeful.

ספר השרשים