Auger is related to carpenter in the same way awl is related to

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Mundas : Gaddis : Shompens

Swerve is related to Veer in the same way as Rotate is related to........?

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Palaeography : Writings : : Ichthyology : ?

Milk is to Water as Ghee is to.........?

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Penology : Punishment : : Seismology : ?