aetiology
/iː.tɪˈɒ.lə.dʒi/
"aetiology" is a 9-letter English headword indexed on PlainSpell.
The verdict
“aetiology” is an uncommon English word, ranked #98,939 in English word frequency and used as a noun.
- #98,939
- frequency rank, English
- 9
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The establishment of a cause, origin, or reason for something.
| Property | Value |
|---|---|
| Headword | aetiology |
| Language | English |
| Part of speech | Noun |
| IPA | /iː.tɪˈɒ.lə.dʒi/ |
| Letters | 9 |
| Frequency rank | #98,939 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “aetiology” sits in English frequency
Spelling & Dictionary Insight
The English entry for aetiology is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /iː.tɪˈɒ.lə.dʒi/. Corpus data places it at rank #98,939 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.
aetiology has no tracked misspelling variants, suggesting the orthography follows predictable English patterns. No confusable counterpart is on file for this word, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: Learned borrowing from Latin aetiologia, from Ancient Greek αἰτιολογία (aitiología), from αἰτία (aitía, “cause”). By surface analysis, aetio- + -logy; Doublet of aetiologia. The correct English form is aetiology, spelled A-E-T-I-O-L-O-G-Y.
Definition
- 1The establishment of a cause, origin, or reason for something.
- 2The study of causes or causation.
- 3The study or investigation of the causes of disease; a scientific explanation for the origin of a disease.
- 4A cause of disease or of any particular case of a disease (but see pathology § Usage notes).
Etymology
Learned borrowing from Latin aetiologia, from Ancient Greek αἰτιολογία (aitiología), from αἰτία (aitía, “cause”). By surface analysis, aetio- + -logy; Doublet of aetiologia.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “aetiology”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-E-T-I-O-L-O-G-Y - every other letter order is a misspelling in standard orthography.
- Say it as /iː.tɪˈɒ.lə.dʒi/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.