complemental

Etymology
From.

Adjective

 * 1) Of the nature of a complement; completing.
 * 2) Complementary.
 * 3)  Additional; supplemental, accessory; ancillary.
 * 4)  Of the nature of a ceremony that is not essential but accessory; ceremonial; ceremonious; formal.
 * 5)  Of persons: accomplished; talented; experienced.
 * 6)  Complimentary.
 * 1)  Complimentary.