Lewis Short
(verb) : ămārĭco, āvi, ātum, āre, amarus
* To make bitter (eccl. Lat.).
* Lit.: (liber) faciet amaricari ventrem tuum,Vulg. Apoc. 10, 9; 10, 10.
* Trop., to excite, to irritate: ecce repulsi sunt, qui amaricant,Aug. Enn. in Psa. 65, n. 15.
Charlton T. Lewis, Charles Short, A Latin Dictionary