Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Alpĭcus, a, um, adj. [Alpes], a rare form for Alpinus, Alpine: PER MONTES ALPICOS, Inscr. Orell. 1613.
Subst. plur., the inhabitants of the Alpine regions. Alpicos conantes prohibere transitum concidit, Nep. Hann. 3, 4.