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US /ɹuːl/ UK /ɹuːl/
Freq #1440

Meanings

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Verb forms

Verb forms are not available for this word yet.

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Synonyms
1 noun · an instruction that says... regulation

Appears in

Simplified etymology

Rule is recorded from Middle English and goes back to Latin regula, “straight stick,” and beyond that to regere, “to rule.” The older sense of a measuring stick remains in expressions such as “run the rule over” and “rule of thumb.”

Etymology

From Middle English reule, rewle, rule, borrowed from Old French riule, reule, from Latin regula (“straight stick, bar, ruler, pattern”), from regō (“to keep straight, direct, govern, rule”), ultimately from Proto-Indo-European *h₃réǵeti (“to straighten; right”), from the root *h₃reǵ-; see regent. Doublet of rail, regal, regula, and rigol.

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