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Today we are looking into, examining, scrutinizing and underseeking the origins of the word investigate.

Investigate [ɪnˈves.tɪ.ɡeɪt/ɪnˈves.tə.ɡeɪt] means:

• to inquire into or study in order to ascertain facts or information.
• to examine, look into, or scrutinize in order to discover something hidden or secret.
• to conduct an inquiry or examination.

It comes from investigation, from the Latin investīgātiō (a searching into), from investīgātus (investigated), from investīgō (I track, trace out, search after, discover), from in- (in, within, inside) and vestīgō (I follow a track, search, investigate), possibly from the PIE root *steygʰ- (to walk) [source].

Related words in English include vestige (a mark left on the earth by a foot; a faint mark or visible sign left by something which is lost, or has perished, or is no longer present), vestigial, and the old word pervestigate (to investigate thoroughly) [source].

A synonym for investigate is underseek (to examine, explore, investigate, spend too little time or effort in seeking). It comes from the Middle English underseken, from the Old English undersēcan [ˌun.derˈseː.t͡ʃɑn] (to investigate, examine), from under (beneath), and sēċan (to look for, seek, visit, attack) [source].

Related words in other languages include onderzoeken (to investigate, research) in Dutch, untersuchen (to examine, investigate) in German, and undersøge (to examine, test, investigate) in Danish [source].

Here’s a video I made of this information:

Video made with Doodly [afflilate link].

I also write about words, etymology and other language-related topics on the Omniglot Blog, and I explore etymological connections between Celtic languages on the Celtiadur.

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