Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Ambrŏsiē, ēs, or -a, ae, f., = Ἀμβροσίη, Ambrosia, daughter of Attas and Pleione, one of the Hyades, Hyg. Fab. 182 and 192; id. poët. Astr. 2, 21.