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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 2016, no. 4. http://dmnes.org/2016/4/name/Bonissima.