aracho-, arachi-, arachid-, araki-

A morbid fear of peanut butter sticking to the roof of one’s mouth.

It’s related to fears of swallowing and gagging. Said to be created as a joke.

1. Pertaining to or disignating a fatty acid that is found in the form of esters in the oil of the peanut (Arachis hypogaea), in butter, etc.
2. Pertaining to or obtained from leguminous plants of the genus Arachis.

1. In biochemistry, an unsaturated acid, obtained from lecithin; a fatty acid essential for growth of mammals, but which can be synthesized from linoleic acid; from Arachis, a generic name for the peanut.
2. Arachidonic acid is found only in animal fats, as in egg yolk and liver.
3. Coined from the modern Latin stem arachid-, "peanut" (from Greek arakhos, "a type of leguminous plant").

In chemistry, a glyceryl ester of arachic acid.

The common peanut; when it isn't capitalized, it's a plant of this genus.

Peanut oil.