ācrĭcŭlus — Lewis & Short
ācrĭcŭlus, a, um,
I adj. dim. [2. acer], somewhat sharp, testy:
ille acriculus senex Zeno,Cic. Tusc. 3, 17, 38 (cf. acerbus, and the passage there quoted fr. Cic. N. D. 3, 31).