Etymograph

English

bacteriological

Bacteriological comes from Ancient Greek λόγος ‘that which is said: word, sentence, speech,…’, and goes back to Proto-Indo-European *leǵ- ‘to gather, collect, with derivatives meaning…’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*leǵ-1‘to gather, collect, with derivatives meaning to speak by carefully selecting one's words’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*lóǵos1reconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*lógos1reconstructed
  4. Ancient Greekc. 800–300 BCEλόγος1lógos‘that which is said: word, sentence, speech, story, debate, utterance, argument’
  5. Englishtodaybacteriological1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English bacteriological

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*leǵ-Wiktionary, English bacteriological‘to gather, collect, with derivatives meaning to speak by carefully selecting one's words’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*lóǵosWiktionary, English bacteriologicalreconstructed
  3. Proto-Hellenicc. 2200–1600 BCE*lógosWiktionary, English bacteriologicalreconstructed
  4. Ancient Greekc. 800–300 BCEλόγοςWiktionary, English bacteriologicallógos‘that which is said: word, sentence, speech, story, debate, utterance, argument’
  5. EnglishtodaybacteriologicalWiktionary, English bacteriological

A compound of bacterio- + -logical

Ancient Greek βακτηρία ‘rod, staff, cane’

Ancient Greek βακτήριον ‘diminutive of βακτηρία (baktēría)’

New Latin bactērium

English bacterio-

Linked words

through Proto-Indo-European *leǵ- ‘to gather, collect, with derivatives meaning…’

election, technology, collection, lesson, select, elite, eligible, collect, elegant, elect, coil, negligence, legion, catalogue, negligent, negligible, diligent, leach, astrology, lexicon, cull, epilogue, cosmology, lexical, legation, lexis, lignin, gynecologist, alexia, dialectic, lignite, ineligibility, dialogic, 151 more

through Proto-Hellenic *lógos

archaeological, pathological, etymology, homologous, pathophysiology, psychopathology, astrological, neurophysiology, histopathology, 103 more

through Ancient Greek λόγος ‘that which is said: word, sentence, speech,…’

logic, apology, trilogy, analogy, sociology, logos, pathology, physiology, terminology, monologue, prologue, eulogy, archaeologist, pathologist, logistic, epistemology, entomology, etiology, apologia, syllogism, 111 more

Today it means

adj Of or pertaining to bacteriology.

Sources

Sources: Wiktionary, “bacteriological”. 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 *leǵ- / bacteriological

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