Etymograph

English

proso-

Proso- comes from Ancient Greek πρόσω ‘forward’, from πρός ‘besides, over and above, thereto, in addition’, and ultimately from Proto-Indo-European *próti ‘towards’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*próti1‘towards’reconstructed
  2. Ancient Greekc. 800–300 BCEπρός2‘besides, over and above, thereto, in addition’
  3. Ancient Greekc. 800–300 BCEπρόσω3prósō‘forward’
  4. Englishtodayproso-3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Ancient Greek πρός
  2. 2 Wiktionary, Ancient Greek πρόσω
  3. 3 Wiktionary, English proso-

Earlier history uncertain. See Wiktionary.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*prótiWiktionary, Ancient Greek πρός‘towards’reconstructed
  2. Ancient Greekc. 800–300 BCEπρόςWiktionary, Ancient Greek πρόσω‘besides, over and above, thereto, in addition’
  3. Ancient Greekc. 800–300 BCEπρόσωWiktionary, English proso-prósō‘forward’
  4. Englishtodayproso-Wiktionary, English proso-

Equivalent to pros- + -o-

Proto-Indo-European *próti ‘towards’

Ancient Greek πρός ‘besides, over and above, thereto, in addition’

English pros-

Linked words

through Proto-Indo-European *pró ‘forwards, before’

prior, pro, prominent, proton, prolactin, 9 more

Today it means

prefix Forward, in the front

Sources

Sources: Wiktionary, “proso-”; the older steps come from the Wiktionary entries for Ancient Greek πρός, Ancient Greek πρόσω. 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 *próti / proso-

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