Turnpike

wiktionary

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From Middle English turnpyke(“spiked barrier across a road”), originally used to block access to such a road until toll was paid. Equivalent to modern turn + pike(“shaft”).

etymonline

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turnpike (n.)

early 15c., "spiked road barrier used for defense," from turn + pike (n.2) "shaft." Sense transferred to "horizontal cross of timber, turning on a vertical pin" (1540s), which were used to bar horses from foot roads. This led to the sense of "barrier to stop passage until a toll is paid" (1670s). Meaning "road with a toll gate" is from 1748, shortening of turnpike road (1745).