Source : Webster's Revised Unabridged Dictionary (1913)

Collectively \Col*lect"ive*ly\, adv.
   In a mass, or body; in a collected state; in the aggregate;
   unitedly.

Source : WordNet®

collectively
     adv : in conjunction with; combined; "Our salaries put together
           couldn't pay for the damage"; "we couldn`t pay for the
           damages with all out salaries put together" [syn: {jointly},
            {conjointly}, {together}, {put together}]