A person who hesitates; someone characterized by hesitation, reluctance, or indecision in their actions or choices.
Formed from 'hesitate' plus the Latin agent suffix -or (rather than the Germanic -er), which creates nouns meaning 'one who does X.' This -or suffix is used when the word has been Latinized or when it needs to sound more formal.
'Hesitator' versus 'hesitater' shows how English speakers unconsciously choose between Germanic (-er) and Latinate (-or) suffixes, often without noticing the difference. Scientists and lawyers gravitate toward -or (resonator, coordinator), while everyday speakers use -er (runner, fighter). It's a class and formality signal built into our morphemes.
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