SYNONYMIZE
Etymology
Verb
synonymize (third-person singular simple present synonymizes, present participle synonymizing, simple past and past participle synonymized)
To express by a synonym or synonyms.
(taxonomy) To identify two taxonomic terms as synonyms, thus equating two potentially disparate categories.
Source: Wiktionary
Syn*on"y*mize, v. t. [imp. & p. p. Synonymized; p. pr. & vb. n.
Synonymizing.]
Definition: To express by a synonym or synonyms; to give the synonym or
synonyms corresponding to.
This word "fortis" we may synonymize after all these fashions: stout,
hardy, valiant, doughty, courageous, adventurous, brave, bold,
daring, intrepid. Camden.
Source: Webster’s Unabridged Dictionary 1913 Edition