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If 7 days equals 1 week and 1 week is referred to as being a "sennight," then by default a semi-sennight would be the term used to describe the middle of the week, or Wednesday. This term was coined by UK native, Southern California/Washington state resident Kent’ae Van London, CLP, AAMS, GNSA in 2025 as a creative method around saying, "Happy Hump Day" each Wednesday.
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