E / ex-ăcerbesco
verb intransitive hapax

ex-ăcerbesco

2nd PP ex-ăcĕre · conj. 3rd
to become exasperated; irritated; angry
v. inch. n., to become exasperated, irritated, angry: quis est tam mitis quin exacerbescat, App. Mag. p. 327, 28.