delve
Concise Oxford English Dictionary © 2008 Oxford University Press:
delve/delv/
▶verb
- 1 reach inside a receptacle and search for something.
- 2 research intensively into something.
– derivatives
delver noun.
delver noun.
– origin OE delfan ‘dig’, of W. Gmc origin.
'delve' also found in these Oxford entries:

