Etymology
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overcharge (v.)

c. 1300, overchargen, "to overload, overburden, load (something) too heavily," from over- + charge (v.). Meaning "to charge someone too much money, demand an excessive price from" is from 1660s. Related: Overcharged; overcharging.

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surcharge (v.)
early 15c., "overcharge, charge too much expense," from Old French surcharger "to overload, overburden, overcharge" (12c.), from sur- "over" (see sur- (1)) + chargier "to load" (see charge (v.)). Meaning "make an extra charge on" is from 1885. The noun is also first attested early 15c. Related: Surcharged; surcharging.
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soak (v.)
Old English socian (intransitive) "to soak, to lie in liquid," from Proto-Germanic *sukon (source also of West Flemish soken), possibly from PIE *sug-, from root *seue- (2) "to take liquid" (see sup (v.2)). Transitive sense "drench, permeate thoroughly" is from mid-14c.; that of "cause to lie in liquid" is from early 15c. Meaning "take up by absorption" is from 1550s. Slang meaning "to overcharge" first recorded 1895. Related: Soaked; soaking. As a noun, mid-15c., from the verb.
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