What does "cossical" mean?
Cossical: Of or relating to algebra; as, cossic numbers, or the cossic art. [Obs.] "Art of numbers cossical." Digges (1579).
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00