Etymograph

English

thiomorpholine

Thiomorpholine comes from Ancient Greek θεῖον ‘sulfur’, and goes back to θέειον.

  1. Ancient Greekc. 800–300 BCEθέειον1théeion
  2. Ancient Greekc. 800–300 BCEθεῖον1theîon‘sulfur’
  3. Englishtodaythiomorpholine1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English thiomorpholine

Earlier history uncertain. See Wiktionary.

Lineage

  1. Ancient Greekc. 800–300 BCEθέειονWiktionary, English thiomorpholinethéeion
  2. Ancient Greekc. 800–300 BCEθεῖονWiktionary, English thiomorpholinetheîon‘sulfur’
  3. EnglishtodaythiomorpholineWiktionary, English thiomorpholine

A compound of thio- + morpholine

Ancient Greek θέειον

Ancient Greek θεῖον ‘sulfur’

English thio-

Linked words

through Proto-Indo-European *dʰewh₂- ‘smoke’

down, steam, dye, funk, dew, dun, dune, duvet, dag, fume, thymus, obfuscate, fumigation, typhon, 26 more

Today it means

noun A saturated alicyclic heterocycle that has four carbon atoms, one nitrogen and one sulfur atom; but especially 4-thiomorpholine

Sources

Sources: Wiktionary, “thiomorpholine”. 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 / Ancient Greek θέειον / thiomorpholine

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