Of or relating to chronography; using detailed written accounts arranged according to the order of time.
From chronographic plus -al, the more formal variant. Both chronographic and chronographical coexist in scholarly English, with the -al form appearing in older academic texts.
The longer form chronographical often appears in historical scholarship from the 1700s-1800s, back when academic writing loved adding -al to adjectives for extra gravitas and formality.
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