Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Perseus.
The word Monteù could not be parsed. Trying a normal dictionary lookup:
No entries found. Showing closest matches:
‡ montensis, e, adj. [mons], for montanus, of or belonging to mountains, mountain-: DII, Inscr. Grut. 21, 3.