pessime

From LSJ

ψυχῶν σοφῶν φροντιστήριον → thought-shop of wise souls

Source

Latin > English (Lewis & Short)

pessĭmē: adv., v. 1. malus, adv.

Latin > French (Gaffiot 2016)

pessĭmē, arch. pessŭmē, superl. de male.

Latin > German (Georges)

pessimē, Adv., s. male.