Etymograph

English

speedful

Speedful comes from Middle English spedful ‘successful, prosperous’, from sped ‘speed, fortune’, and ultimately from Proto-Indo-European *speh₁- ‘to succeed, to prosper’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*speh₁-1‘to succeed, to prosper’reconstructed
  2. Proto-West Germanicc. 200–500 CE*spōdi1‘success, prosperity’reconstructed
  3. Old Englishc. 450–1150spēd1‘success, prosperity’
  4. Middle Englishc. 1150–1500sped2‘speed, fortune’
  5. Middle Englishc. 1150–1500spedful3as speedful‘successful, prosperous’
  6. Englishtodayspeedful3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Middle English sped
  2. 2 Wiktionary, Middle English spedful
  3. 3 Wiktionary, English speedful

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*speh₁-Wiktionary, Middle English sped‘to succeed, to prosper’reconstructed
  2. Proto-West Germanicc. 200–500 CE*spōdiWiktionary, Middle English sped‘success, prosperity’reconstructed
  3. Old Englishc. 450–1150spēdWiktionary, Middle English sped‘success, prosperity’
  4. Middle Englishc. 1150–1500spedWiktionary, Middle English spedful‘speed, fortune’
  5. Middle Englishc. 1150–1500spedfulWiktionary, English speedfulas speedful‘successful, prosperous’
  6. EnglishtodayspeedfulWiktionary, English speedful

Linked words

through Proto-Indo-European *speh₁- ‘to succeed, to prosper’

spare, desperate, despair, spatial, desperation, prosper, spat, esperanza, desperado, esperance, 4 more

Today it means

adj Successful, effectual, efficient.

Sources

Sources: Wiktionary, “speedful”; the older steps come from the Wiktionary entries for Middle English sped, Middle English spedful. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *speh₁- / speedful

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