English
regioning
From region + -ing.
Formed from region + -ing
Proto-Indo-European *h₃reǵ- ‘to straighten’
…
Latin regō ‘to rule’
Latin regiō ‘direction’
Anglo-Norman regiun
Middle English regioun ‘a realm’
English region
Today it means
noun A division into, or splitting across, regions.
Language periods are conventional ranges, not dates for this word.
Etymograph / regioning