To delve is defined as to jump into researching something or to dig around looking for something.(verb)
See delve in Webster's New World College Dictionary
Origin: ME delven < OE delfan, to dig, akin to OHG (bi)telban, Du delven < IE base *dhelbh-, to dig out > Czech dlubu, to hollow out
See delve in American Heritage Dictionary 4
verb delved delved, delv·ing, delves verb, intransitive
Origin: Middle English delven, to dig
Origin: , from Old English delfan.
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