acritude
/ˈakrɪtjuːd/ /ˈakrɪtʃuːd/Now rare
noun
= acridity.
Origin
Mid 17th century; earliest use found in Robert Gentilis (b. 1590), translator. From classical Latin ācritūdō pungency, bitterness, keenness, energy, harshness, fierceness, cruelty from ācris sharp + -tūdō.