Rule — Definition, Word History, and First Known Use
Directly publishes the physical and abstract meanings.
Etymology: Latin regula, straightedge and rule- AUTHOR / EDITOR
- Merriam-Webster Editors
- YEAR
- 2026
- PUBLISHER
- Merriam-Webster
PERMANENT DISPUTE RECORD
ALL DISPUTES ↗One scholarly question. Every attached source. The present editorial state, without pretending the last word has been written.
No. Latin rēgula meant a straightedge or ruler as well as a rule, and the physical measuring sense survives in English.
/ruːl/ · noun
A guide, standard, exercise of authority, or measuring straightedge; borrowed through French from Latin rēgula.
DIRECT CLAIM EVIDENCE
A citation is not a vote. Each record says whether the work supports, challenges, contradicts, or contextualizes the position—and identifies the exact locus used.
Directly publishes the physical and abstract meanings.
Etymology: Latin regula, straightedge and ruleIndependently preserves both branches.
Definitions and etymology: rod, principleThe abstract and physical branches remain visible without claiming one modern sense is false.