Indicate
来自Big Physics
early 17th century: from Latin indicat- ‘pointed out’, from the verb indicare, from in- ‘towards’ + dicare ‘make known’.
wiktionary
From Latin indicatus, past participle of indicāre(“to point out, indicate”), from in(“in, to”) + dicāre(“to declare, originally to point”); see diction. Compare index.
etymonline
indicate (v.)
1650s, "to point out," back-formation from indication (q.v.) or else from Latin indicatus, past participle of indicare "to point out, show," from in- "into, in, on, upon" (from PIE root *en "in") + dicare "proclaim" (from PIE root *deik- "to show," also "pronounce solemnly," and see diction). Especially "to give suggestion of, be reason for inferring" (1706). Related: Indicated; indicating.