subeffective

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adjective

Below the threshold where an effect would be produced.

“a subeffective dose”

OriginEnglish effective ← French effectif ← Latin effectīvu →
Scrabble 25
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Meanings

adjectivesubeffective (not comparable)
  1. not comparableBelow the threshold where an effect would be produced.

    a subeffective dose

Origin

  1. Proto-Indo-European*upó
  2. Proto-Italic*supo
  3. Latinsub
  4. Latinsub-
  5. Englishsub-
  6. Proto-Indo-European*h₁éǵʰ
  7. Proto-Indo-European*h₁éǵʰs
  8. Proto-Italic*eks
  9. Latinex
  10. Latinex-
  11. Proto-Indo-European*dʰeh₁-
  12. Proto-Indo-European*dʰeh₁k-
  13. Proto-Indo-European*dʰh₁kyéti
  14. Proto-Italic*θakjō
  15. Proto-Italic*fakjō
  16. Latinfaciō
  17. Latinefficiō
  18. Latineffectīvu
  19. Frencheffectif
  20. Englisheffective
  21. Englishsubeffective

From sub- + effective.

Full word history & related roots →
Cite this entry
APA

subeffective. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/subeffective

MLA

“subeffective.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/subeffective. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “subeffective,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/subeffective.

Source: subeffective on Wiktionary, CC BY-SA 4.0.