Hypertext Webster Gateway: "extras"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Extra \Ex"tra\, n.; pl. {Extras}.
Something in addition to what is due, expected, or customary;
something in addition to the regular charge or compensation,
or for which an additional charge is made; as, at European
hotels lights are extras. [Colloq.]
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