"In writing and typography, a ligature occurs where two or more graphemes or letters are joined as a single glyph. An example is the character æ ...
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as used in English, in which the letters a and e are joined. The common ampersand (&) developed from a ligature in which the handwritten Latin letters e and t (spelling et, from the Latin for "and") were combined." - (en.wikipedia.org 14.11.2019)
