rheo-

prefix

flow, current

OriginAncient Greek ῥέω (rhéō) ← Proto-Hellenic *hréwō ← Proto-Indo-European *sréweti →
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Meanings

prefix
  1. flow, current

Origin

  1. Proto-Indo-European*ser-?
  2. Proto-Indo-European*srew-
  3. Proto-Indo-European*sréweti
  4. Proto-Hellenic*hréwō
  5. Ancient Greekῥέω (rhéō)
  6. Englishrheo-

Ancient Greek ῥέω (rhéō, “flow”)

More words from Ancient Greek

Full word history & related roots →
Cite this entry
APA

rheo-. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rheo-

MLA

“rheo-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rheo-. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “rheo-,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rheo-.

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