arithmologicaladj.

/əˌrɪθməʊˈlɒdʒɪkəl/Etymology: Formed as arithmography n. + Greek -λογικός discoursing of + -al suffix1.
the world > relative properties > number > arithmetic > [adjective]
1882 J. W. L. Glaisher in 28 Dec. 193/1 The arithmological papers are numerous.
This entry has not yet been fully updated (first published 1885; most recently modified version published online March 2018).