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C# (English) eq # (English) hr # (English) Derived from the abbreviation lb for Latin libra (“pound”), via the medieval convention of indicating abbreviations

[U+2E1E TILDE WITH DOT ABOVE], ⸟ [U+2E1F TILDE WITH DOT BELOW], and Unsupported titles/Linearized tilde Character variations English Wikipedia has an article

genuine”), making it cognate with germane and german, but this seems unsupported. Attempts to derive it from Germanic or Celtic roots since the 18th century