1785 T. Martyn tr. J.-J. Rousseau xxvi. 402 The leaves are ovato-cordate, or egg-shaped, only hollowed at the base.
1868 S. Hereman (new ed.) 410/2 Ovate, when joined by a hyphen to another word, signifies a form between the two, as ovato-cordate, ovate, and heart-shaped.