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ontology

/ɒnˈtɒlədʒi/

study of being and what exists

From Greek onto (being) + Greek log (account).

noun
onto
Ancient Greek
AI-inferred
ὤν, ὄντος (ṓn, óntos)
present participle of 'to be'; 'being, existing'
New Latin
Verified
onto-
combining form used in learned coinages about being

from New Latin ontologia (1606, Ogdoas Scholastica, by Jacob Lorhard (Lorhardus))

log
Ancient Greek
AI-inferred
λόγος (lógos)
word, account, discourse, reason
New Latin
AI-inferred
-logia / -logy
suffix for a field of study or discourse
Combined
ontologia
coined in New Latin in 1606 by Jacob Lorhard; literally a 'discourse/study of being'
English
AI-inferred
ontology
attested in English by 1663 in Gideon Harvey
Modern English
ontology

Some words arrive looking all dignified and ancient, but ontology is a bookish invention with a birth certificate. In 1606, the German scholar Jacob Lorhard coined New Latin ontologia in his Ogdoas Scholastica, stitching together Greek ontos, “being,” and logos, “account” or “study,” so the whole thing means something like “the study of being.” That same logos family gave us logic, biology, geology, and a whole library of words that sound as if they belong in a university tower. English picked the term up by 1663 in Gideon Harvey’s Archelogia philosophica nova, and later the philosopher Christian Wolff helped make it a standard philosophical label. So when you say ontology, you are really talking about a word that was engineered to ask the oldest question possible: what, exactly, counts as existing?

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