顿 → ☊ dun4 
to stop; to pause; to arrange; to lay out; to kowtow; to stamp (one's foot); at once; classifier for meals, beatings, scoldings etc: time, bout, spell, meal ☊ 
Columbus ☊ (一)餐 ☊ → (一顿)饭食 ☊ → ☊ → 
meal