Hominy
Hominy is a food produced from dried maize kernels that have been treated with an alkali, in a process called nixtamalization (nextamalli is the Nahuatl word for "hominy"). "Lye hominy" is a type of hominy made with lye. The process of nixtamalization has been fundamental to Mesoamerican cuisine since ancient times. The lime used to treat the maize can be obtained from several different materials. Among the Lacandon Maya who inhabited the tropical lowland regions of eastern Chiapas, the caustic powder was obtained by toasting freshwater shells over a fire for several hours. In the highland areas of Chiapas and throughout much of the Yucatán Peninsula, Belize River valley and Petén Basin, limestone was used to make slaked lime for steeping the shelled kernels. The Maya used nixtamal to produce beers that more resembled chicha than pulque. When bacteria were introduced to nixtamal it created a type of sourdough. The process of nixtamalization spread from Mesoamerica northwards through various indigenous tribes of North America. European settlers first encountered the dish in eastern North America, with the word hominy being an anglicization of the Powhatan word rokahamĕn.
Source: Wikipedia