A person or tool that forks something; someone who uses a fork, or something that causes something to fork or divide.
From 'fork' plus the agent suffix '-er' meaning 'one who does' or 'that which does.' This straightforward noun formation was common for tool users.
In old agricultural societies, being skilled as a forker—someone who used a pitchfork with precision to handle hay or manure—was a valued trade skill worth paying good wages for!
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