An alternative or archaic form meaning a person who studies or establishes chronologies; similar to a chronologist.
From chronology plus -er, meaning 'one who does chronology.' This older English form appears in early modern texts before chronologist became the standard term.
Chronologer is the original version of the word—by the 1600s it got replaced by the fancier-sounding 'chronologist,' showing how English prefers Greek and Latin suffixes over humble English ones.
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