Diagnostic
来自Big Physics
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early 17th century: from Greek diagnōstikos ‘able to distinguish’, from diagignōskein ‘distinguish’; the noun from hē diagnōstikē tekhnē ‘the art of distinguishing (disease)’.
wiktionary
etymonline
diagnostic (adj.)
1620s, "of or pertaining to diagnosis," also as a noun, "a symptom of value in diagnosis," from Greek diagnōstikos "able to distinguish," from diagnōstos, verbal adjective from diagignōskein "to discern, distinguish," literally "to know thoroughly" or "know apart (from another)," from dia "between" (see dia-) + gignōskein "to learn, to come to know," from PIE root *gno- "to know." Related: Diagnostics.
