Basic Guidelines For English Spellings
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Complete, perfect; consummative.
Early 18th century; earliest use found in Henry Dodwell (1641–1711), scholar and theologian. From Byzantine Greek τελειωτικός perfective, effective from Hellenistic Greek τελειωτής accomplisher, finisher (from ancient Greek τελειοῦν to perfect, to complete + -τής, suffix forming agent nouns) + ancient Greek -ικός.