▼6:11The word ‘super’ in Latin is sometimes used to refer to remaining alive (above ground). The word ‘substantialem’ refers to what is essential or necessary. So supersubstantialem refers to what is necessary to sustain life, in this case, spiritual life.(Conte)

▼6:11 Supersubstantial bread: In St. Luke the same word is rendered daily bread. It is understood of the bread of life, which we receive in the Blessed Sacrament.(Challoner)