Denest

The cups are nested, sealed in polyethylene bags, and sterilized using ethylene oxide methods. After sterilization, the nested cups are transported to the aseptic packaging area, where they are aseptically removed from their polyethylene shroud and placed in the shrouded clean environment. Sterilized food is filled through the equipment into cups that have been denested into holders.

Source: wiktionary

To save space, sub-subentries—where unavoidable—are generally run-on even in otherwise set-out indexes. However, they can most effectively be bypassed by denesting the subentry into a separate main entry of its own, cross-referring to it as necessary.

Source: wiktionary

But called words don't get denested either at compile time or runtime. But could compile portable tokens and then on some systems denest then as just in time compiling and running or you could have a coprocessor that denests higher level nested code.

Source: wiktionary

In the first step we use a little-known theorem that, for a particular situation, "denests" a square root that occurs as a term within another square root.

Source: wiktionary