Mentholatum
/ˌmɛnθəˈleɪtəm/noun
A trademark for: any of various menthol-containing preparations used to relieve the symptoms of colds and for other purposes.
Origin
Early 20th century; earliest use found in The Official Gazette. From menthol + -atum, after post-classical Latin nouns in -atum denoting products, and perhaps immediately after petrolatum.