• (v. i.) To repeat the same thing in different words.
Tau·tol'o·gize intransitive verb [ imperfect & past participle Tautologized ; present participle & verbal noun Tautologizing .] To repeat the same thing in different words. 
tautologize, tautologizes 1. To repeat the same thing in the same or with different words. 2. Using tautology.