mobility

mobility · noun¹

1. Latin · derived frommōbilitās“mobility”
2. Middle French · derived frommobilité
3. English todaymobility

From Middle French mobilité, and its source, Latin mōbilitās (“mobility”).

mobility · noun²

Blend of mob + nobility

First known use, by meaning

• from 15th c. The ability to move; capacity for movement.
• from 16th c. A tendency to sudden change; mutability, changeableness.
• from 18th c. The ability of a military unit to move or be transported to a new position.
• from 19th c. The degree to which particles of a liquid or gas are in movement.
• from 19th c. The ability of people to move between different social levels or professional occupations.