Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
jūnix, or uncontr. jŭvĕnix, īcis, f. [juvenix], a young cow, a calf, heifer: tot tibi cum in flammas junicum omenta liquescant, Pers. 2, 47.
In the form juvenix, of a maiden (cf.: δάμαλις, juvenca): quam mox horsum ad stabulum juvenix recipiat se pabulo, Plaut. Mil. 2, 3, 38 Ritschl. dub. (MSS. juvenis).