quatriduum
From LSJ
κεραυνὸν ἐν γλώττῃ φέρειν → carry a thunderbolt on his tongue
Latin > English
quatriduum quatridui N N :: period of four days; [~o => in the four days from now, within four day of]
Latin > English (Lewis & Short)
quătrĭdŭum: v. quadriduum.
Latin > French (Gaffiot 2016)
quătrĭdŭŭm,¹⁴ v. quadriduum.