Ontology is the study of being. It focuses on the nature of reality.
Definitions
Samuel Johnson’s 1755 Dictionary did not include ontology.[2]
Webster’s 1828 Dictionary defined ontology as:[3]
“That part of the science of metaphysics which investigates and explains the nature and essence of all beings, their qualities and attributes.”
Merriam-Webster’s online dictionary defined ontology as:[4]
1 – “a branch of metaphysics concerned with the nature and relations of being”
2 – “a particular theory about the nature of being or the kinds of things that have existence”
Dictionary.com defined ontology as:[5]
1 – “the branch of metaphysics that studies the nature of existence or being as such.”
2 – “(loosely) metaphysics.”
Lexico.com defined ontology as:[6]
1 – “[mass noun] The branch of metaphysics dealing with the nature of being.”
2 – “A set of concepts and categories in a subject area or domain that shows their properties and the relations between them.”
Charles Roe (2012) defined ontology as:[1]
“the study or theory of being or that which is.”
Etymologies
Early C17th: The earliest known use of the word ontology in written form was created. It was based on Latin ontologia.[1]
1660s: “”the metaphysical science or study of being and the essence of things,” 1660s (Gideon Harvey), from Modern Latin ontologia (c. 1600); see onto- + -logy.”[7]
1663: “in the meaning defined at sense 1”, “New Latin ontologia, from ont- + -logia -logy”[4]
1715-25: “From the New Latin word ontologia … See onto-, -logy”[5]
Early C18th: “from modern Latin ontologia, from Greek ōn, ont- ‘being’ + -logy.”[6]
History
c.500 BCE: Parmenides wrote his works that are now considered the earliest works which discuss “the ontological categorization of existence”.[1]
C17th-C18th CE: According to the Etymologies section above, it was sometime during these two centuries that the word ontology was coined.
References:
[1] – Roe, Charles. “A Short History of Ontology: It’s not just a Matter of Philosophy Anymore” (7 June 2012). https://www.dataversity.net/a-short-history-of-ontology-its-not-just-a-matter-of-philosophy-anymore/#. Accessed 16 Jan. 2021.
[2] – “A Dictionary of the English Language”, A Digital Edition of the 1755 Classic by Samuel Johnson. https://johnsonsdictionaryonline.com/search-johnsons-dictionary/?SearchValue=ontology. Accessed 16 Jan. 2021.
[3] – Webster’s 1828 Dictionary. http://webstersdictionary1828.com/Dictionary/ontology. Accessed 16 Jan. 2021.
[4] – “Ontology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ontology. Accessed 16 Jan. 2021.
[5] – Dictionary.com. https://www.dictionary.com/browse/ontology?s=t. Accessed 16 Jan. 2021.
[6] – Lexico.com. https://www.lexico.com/definition/ontology. Accessed 16 Jan. 2021.
[7] – Online Etymology Dictionary. https://www.etymonline.com/word/ontology. Accessed 16 Jan 2021.
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