Of or relating to a chronogram or its characteristics; using or containing a hidden date encoded in letter values.
From chronogram plus -ic, an alternative formation to chronogrammatic. Both forms existed in English scholarly writing, with -mic appearing less frequently in modern texts.
The existence of both 'chronogrammatic' and 'chronogrammic' shows how English loves word-formation options—scholars debated which suffix (-ic or -matic) best fit this concept, and both stuck around in different texts.
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