mexicanismos

For mexicanismos which can be used on Television and radio, I have found the Diccionario anaya de la lengua published by the Fundacion Cultural Televisa in various editions starting in 1979 and apparently terminating in 1981 to be very useful.

dictionary recommendation? 2005

The geographical dictionary gives Latin forms when available Adour, latín Aturus but no other etymologies; for Mexican place names, however, the etymology is often available via the adjective's listing in the Diccionario breve de mexicanismos:acapulqueño, acapulqueña.

languagehat.com: MEXICAN AND GEOGRAPHICAL DICTIONARIES. 2005

The Academia Mexicana de la Lengua maintains on its website the Diccionario breve de mexicanismos, containing Spanish definitions of words peculiar to Mexico, and the Diccionario geográfico universal, whose entries often give "local pronunciation" and the Spanish adjective derived from the place name e.g., Acaya 'Achaea' has the adjective aqueo 'Achaean,' which is logical but might not immediately occur to the inquiring mind; that for Acapulco is acapulqueño.

languagehat.com: MEXICAN AND GEOGRAPHICAL DICTIONARIES. 2005

From the Diccionario breve de mexicanismos ruco, ruca. adj.

Una Palabra 2002