potissimum
From LSJ
Latin > English
potissimum ADV :: chiefly, principally, especially; eminently; above all; to his advantage
Latin > French (Gaffiot 2016)
pŏtissĭmum¹⁰ (potissimus), adv., principalement, par-dessus tout, de préférence : Cic. Mur. 4 ; Tusc. 5, 11 ; Verr. 2, 4, 70. potissime forme douteuse, Cels. Med. 3, 6.
Latin > Chinese
potissimum. adv. :: 至好。在先。Nescio quid expediam potissimum 未知先辦何事。