Relating to or arranged according to the order of time; in sequence from earliest to latest events.
From chronology plus -ic. Both chronologic and chronological coexist in English, though chronological is far more common in modern usage.
Chronologic (without the -al) is the older form that appears in texts from the 1500s-1700s, while chronological became dominant—this shift shows how -al became English's favorite adjective-forming suffix.
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