foulc m (oblique plural fouls, nominative singular fouls, nominative plural foulc)
From Frankish *folc, fulc (“people, crowd, multitude, troop”), from Proto-Germanic *fulką (“people collectively, multitude; host of warriors”), perhaps from Proto-Indo-European *pelə- (“to fill”). Cognate with Old High German folc (“people, nation”). More at folk, full.