The Collaborative International Dictionary of English v.0.48:
Consentaneous \Con`sen*ta"ne*ous\, a. [L. consentaneus.] Consistent; agreeable; suitable; accordant to; harmonious; concurrent. [1913 Webster] A good law and consentaneous to reason. --Howell. -- Con`sen*ta"ne*ous*ly, adv. -- Con`sen*ta"ne*ous*ness, n. [1913 Webster]