Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
vĕtĕrārĭus, a, um, adj. [vetus], old, mature (very rare): quoniam non contenti vina diffundere, veteraria per sapores aetatesque disponere invenimus, Sen. Q. N. 4, 13, 3; cf.: veteraria nostra et plena multorum saeculorum vindemiis horrea, id. Ep. 114, 26.