Dictionary of Medieval Names
from European Sources

Bonissima f. Latin bonissima 'most good, kind, right, pleasant; valid, useful, healthy'.

France
Latin
1060 Bonissima (nom) StVdM-II 730, Bonissimę (gen) ibid. 730
Cite as: S.L. Uckelman. "Bonissima". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2017, no. 1. http://dmnes.org/2017/1/name/Bonissima.