Depending on something else holding. A conditional makes what follows contingent rather than certain.

On the condition that. The word that makes what follows depend on something else.

To bring two things together until they are one and the seam is gone. Merging costs the separateness.

Brought together into one, and the join kept — histories or rooms combined without losing either line.

To reorder without pattern. Shuffling destroys an arrangement on purpose.

One lawful form among siblings — the same essence wearing a different face. A variant differs by design, never by drift.