delve 
/ˈdɛlv/ verb
delves; delved; delv·ing /ˈdɛlv/ verb [no obj] 1 : to search for information about something
▪ He tried to delve inside his memory for clues about what had happened. — usually + into ▪ Before the trip, I delved into the history of the city. ▪ Now is not the time to delve into the past. ▪ He delved deeply/further into his research. 2 chiefly Brit : to reach into a bag, container, etc., in order to find something — usually + in or into ▪ He delved in the drawer for a torch. ▪ She delved into her handbag in search of a pen.
▪ He tried to delve inside his memory for clues about what had happened. — usually + into ▪ Before the trip, I delved into the history of the city. ▪ Now is not the time to delve into the past. ▪ He delved deeply/further into his research.
