an insect (Llaveia axin, in the family Margarodidae, order Hemiptera) a genus endemic to Mexico and Guatemala) (personal communication, Alejandro de Ávila Blomberg, 10 May 2022); the insect secrets a substance/ointment used medicinally, and that substance itself is also called axin (see Karttunen)
"Coccus axin: 'axi, axin or aje, an oily yellowish substance which is produced by a scale insect of the same name upon the branches of Jatropha curcas, Spondias, and other trees'." Quoted from a study by Paul C. Standley of the "Trees and Shrubs of Mexico."
SUAZO-ORTUNO, Ireri; DEL VAL-DE GORTARI, Ek y BENITEZ-MALVIDO, Julieta. Redescubriendo un insecto extraordinario que desaparece: Llaveia axin axin. Revista Mexicana de Biodiversidad. [online]. 2013, vol.84, n.1, pp.338-346. ISSN 2007-8706. https://doi.org/10.7550/rmb.31286