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Stage 1 of 4
pendere
Latin · ancient
"to hang"
to hang
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Stage 2 of 4
pendulus
Latin · ancient
"hanging"
hanging, from pendere
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Stage 3 of 4
pendulum
New Latin · 1600s
"a weight that swings freely from a fixed point"
formed from pendulus for a weight that swings freely from a fixed point
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Stage 4 of 4
pendulum
English · 1660s
"a weight that swings back and forth under gravity"
adopted directly for a weight that swings back and forth under gravity
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