Consummate

Con*sum"mate (-sŭm"m?t), a. [L. consummatus, p. p. or consummare to accomplish, sum up; con- + summa sum. See Sum.] Carried to the utmost extent or degree; of the highest quality; complete; perfect. "A man of perfect and consummate virtue." Addison.

The little band held the post with consummate tenacity.
Motley

Con"sum*mate (kŏn"sŭm*māt or kŏn*sŭm"māt; 277), v. t. [imp. & p. p. Consummated (-mā`tĕd); p. pr. & vb. n. Consummating (-mā`tĭng).] To bring to completion; to raise to the highest point or degree; to complete; to finish; to perfect; to achieve.

To consummate this business happily.
Shak.