愚ぐ俗ぞく

noun

foolish customs

Rare term referring to customs or practices considered foolish or vulgar. Likely encountered in older or literary texts.

• その古ふるい書しょ物もつには、当とう時じの愚ぐ俗ぞくが記しるされている。

  That old book records the foolish customs of the time.