Webster's Revised Unabridged Dictionary · 1913

Adumbrate

Adumbrate ({not transcribed}) , transitive verb

[Latin adumbratus, past participle of adumbrare; ad + umbrare to shade; umbra shadow.]

1.
To give a faint shadow or slight representation of; to outline; to shadow forth.
Both in the vastness and the richness of the visible universe the invisible God is adumbrated. — L. Taylor
2.
To overshadow; to shade.