Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
spondālĭum or spondaulĭum (the form is uncertain), ii, n., a sacrificial hymn, accompanied by the flute: spondalium canere, Diom. p. 472 fin. P.: spondalia dicens, etc., Cic. de Or. 2, 46, 193 Orell. N. cr.