Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
sanctĭfĭco, āvi, ātum, 1, v. a. [sanctusfacio], to make holy or treat as holy, to sanctify, consecrate, dedicate (eccl. Lat.), Tert. Or. 3; id. Exhort. ad Cast. 7; Prud. Cath. 3, 15; Vulg. Gen. 2, 3 et saep.