COMPLEMENTARILY
Etymology
Adverb
complementarily (comparative more complementarily, superlative most complementarily)
In a complementary manner.
Source: Wiktionary
COMPLEMENTARY
Com`ple*men"ta"ry, a.
Definition: Serving to fill out or to complete; as, complementary numbers.
Complementary colors. See under Color.
– Complementary angles (Math.), two angles whose sum is 90°.
Com`ple*men"ta*ry, n. Etym: [See Complimentary.]
Definition: One skilled in compliments. [Obs.] B. Jonson.
Source: Webster’s Unabridged Dictionary 1913 Edition