Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
The word arithmeticam could not be parsed. Trying a normal dictionary lookup:
No entries found. Showing closest matches:
† ărithmētĭca, ae, and -ē, ēs, f., = ἀριθμητική (sc. τέχνη), arithmetic, the science of numbers: arithmetica, Sen. Ep. 88; arithmetice, Vitr. 1, 1, and Plin. 35, 10, 36, § 76.
† ărithmētĭcus, a, um, adj., = ἀριθμητικός, of or pertaining to arithmetic, arithmetical: ratio, Vitr. 10, 16.
Subst.: ărithmētĭca, ōrum, n., arithmetic: in arithmeticis satis exercitatus, Cic. Att. 14, 12 fin.