Dictionary.net

Profoundly; thoroughly; not superficially; in a high degree; intensely; as, deeply skilled in ethics.

Very; with a tendency to darkness of color.

Gravely; with low or deep tone; as, a deeply toned instrument.

With profound skill; with art or intricacy; as, a deeply laid plot or intrigue.

Profoundly; thoroughly; not superficially; in a high degree; intensely; as, deeply skilled in ethics.

Very; with a tendency to darkness of color.

Gravely; with low or deep tone; as, a deeply toned instrument.

With profound skill; with art or intricacy; as, a deeply laid plot or intrigue.

To a great depth; profoundly; with great emotion; gravely; with profound skill.

adv. At or to a great depth;—profoundly; thoroughly;—gravely.

To a great depth, far below the surface; with, great study or sagacity; sorrowfully, solemnly; with a tendency to darkness of colour; in a high degree.