We don't have synonyms for ensphering yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are insphering, unsphering and sphering.
(v) :
(transitive) To place in a sphere; to surround in all directions (as if) by a sphere (one of the concentric hollow transparent globes formerly believed to rotate around the Earth).
(v) :
(transitive) To place in a sphere; to surround in all directions (as if) by a sphere (one of the concentric hollow transparent globes formerly believed to rotate around the Earth).