a system of assigning numerical values to the letters of the Hebrew alphabet, esp when used by cabbalists to interpret the Hebrew scriptures
It seems likely that the Assassins believed in and practised a form of cabalisticgematria.
gematria in American English
(ɡəˈmeitriə)
noun
a cabbalistic system of interpretation of the Scriptures by substituting for a particular word another word whose letters give the same numerical sum
Word origin
[1685-95; ‹ Hebrew gēmaṭriyā ‹ Gk geōmetríageometry]This word is first recorded in the period 1685-95. Other words that entered Englishat around the same time include: accumulator, align, commodore, lens, sterilize