Rob arabice est succus cuiusque fructus coctus ad spissitudinem ut servari possit.
Rob is not rubricated in B but is added to the previous entry Roa.
arabice ABC ejp | autem f
est om. f
succus ABC | sucus efjp
cuiusqʒ | cuiusconqʒ B j
spissitudinem | spisitudinẽ B
possit AC efp | posit B | om. j
Rob is Arabic for a juice of which the fruit has been boiled down to a thickness that it can be preserved.
Wehr (1976): ﺭﺏ /rubb/ "rob, thickened juice (of fruit); mash, pulp".