palmomancy
Divination of involuntary movements of the body such as tics.
uncountable
The other texts are new or unidentified: an epic fragment relating to Achilles and the ransoming of Hector, some very imperfect iambic trimeters, apparently from a comedy, scholia on an unknown poetical text, two fragments of romances, an astrological fragment, and some fragments of a book of palmomancy, a genre very popular in Egypt, to judge by the specimens now known. To these may be added no. 718, containing medical recipes.
Where it comes from
From Ancient Greek παλμός (palmós, “quivering motion”) + -mancy; compare palmoscopy. By surface analysis, palmo- + -mancy.
Adapted from the Wiktionary entry palmomancy (CC BY-SA 4.0).