Definition of "psephology"

It therefore seems appropriate to preface this book with a discussion of why elections merit study and an examination of how much has been or can be learnt from psephology.

1952, D. E. Butler, The British general election of 1951

Let us first see how the matter of this letter-numbering or psephology stands generally. The authors think that both the Greek and Hebrew method derive from a common source. But there is no proof of this; indeed the weak point in the whole of this exposition is that they entirely neglect the historical side of the matter and give no references.

1917, The Quest – Volume 8, Part 2, page 698

The numbers 99, 88, and 22 seem to belong to some system of mystic psephology, Or gematria as the Kabbalists afterwards called it.

1924, George Robert Stow Mead, Gnostic John the Baptizer: Selections from the Mandæan John-Book, Together with Studies on John and Christian Origins, the Slavonic Josephus' Account of John and Jesus and the Fourth Gospel Proem

What I want to point out here is that there is a considerable breadth of numerological practices, ranging from psephology/gematria through to practices close to mathematical physics which are deemed to be too much driven by mathematical or aesthetic considerations.

2013, Andrew Gregory, The Presocratics and the Supernatural