Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ānellus (not ann-), i, m. dim. [anulus], a little ring: aureolus, Plaut. Ep. 5, 1, 34; * Lucr. 6, 911: cum tribus anellis, * Hor. S. 2, 7, 9.