Webster's Revised Unabridged Dictionary · 1913

Savvy

Savvy , verb, transitive and intransitive

[Sp. saber to know, sabe usted do you know?]

To understand; to comprehend; know. [Slang, United States]

Also: Savvey

Savvy , noun

Comprehension; knowledge of affairs; mental grasp; also, practical know-how; common sense.
knowledgeable; well-informed; clever; canny; wise. [Slang, United States]

Also: Savvey