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“investigated”
investigate (verb), investigates; investigated; investigating
1. To observe or to inquire into details; to analyze according to a method: The police are investigating the robbery that took place in a jewelry store.
Sherlock Holmes investigated many criminal cases by following the footprints left at the scene of the crimes.
2. Etymologically, "following the footprints" is exactly what an investigator should do, because investigate comes from Latin in-, "in, into" + vestigium, "footprint, track, trace"; literally, "to follow footprints"; therefore, to search into something.
This entry is located in the following unit:
vestig-, vestigi-
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(Named after the Italian physician and physicist who investigated the nature and effects of what he conceived to be electricity in animal tissue; who in 1762 discovered and first described voltaic electricity; electric currents; and primarily, direct electrical current.)