To a deep extent or degree; very greatly.
(ux)
(RQ:Tennyson In Memoriam)
(quote-journal)
So as to extend far down or far into something.
At depth.
In a profound, not superficial, manner.
In large volume.
(coi)
Soundly; so as to be hard to rouse.
Richly.
''a deeply flavoured curry''
(quote-book)