Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
săcerdōtŭla, ae, f. dim. [1. sacerdos], a young or inferior priestess (very rare), Varr. L. L. 5, § 130 Müll.; Veran. ap. Paul. ex Fest. s. v. oletum, p. 203 Müll.; Fest. s. v. flaminia, p. 93 ib.