Standard Lemma guide

derate

verb · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • UK: /diːˈɹeɪt/
  • rhymes with -eɪt

1

verb

Meaning 1

To lower the rated capability of any rated equipment or material.

Definition source: English Wiktionary via Wiktextract

Examples

  • The derated engine sold at a lower price, but had the same components as the standard model.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

lower the rated electrical capability of electrical apparatus

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: lower, lour

History

Etymology

Etymology tree Proto-Indo-European *de Proto-Indo-European *-h1 Proto-Indo-European *déh1 Proto-Italic *dē Latin dē Latin dē-der. English de- English rate English derate From de- + rate.