[ deep-lee ]
/ ˈdip li /


at or to a considerable extent downward; well within or beneath a surface.
to a thorough extent or profound degree: deeply pained; deeply committed.
with depth of color, tone, sound, etc.
with great cunning, skill, and subtlety.

Origin of deeply

before 900; Middle English deply, Old English dēoplīce, derivative of dēoplīc (adj.), equivalent to dēop deep + -līc(e) -ly Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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