typographic ligature

Etymology
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Noun

 * 1)  A character that visually combines multiple letters, usually but not always by connecting them (making them contiguous), such as æ, œ, ß or ĳ; a logotype.
 * 2) * the following are ligatures:
 * ae (a + e) > æ
 * AE (A + E) > Æ
 * db (d + b) > ȸ
 * dz (d + z) > ǳ
 * Dz (D + z) > ǲ
 * DZ (D + Z) > Ǳ
 * et (e + t) > &
 * ff (f + f) > ﬀ
 * ffi (ﬀ + ﬁ) > ﬃ
 * ffl (ﬀ + ﬂ) > ﬄ
 * fi (f + i) > ﬁ
 * fl (f + l) > ﬂ
 * fs (f + s) > ?
 * ft (f + t) > ?
 * ij (i + j) > ĳ
 * IJ (I + J) > Ĳ
 * lj (l + j) > ǉ
 * Lj (L + j) > ǈ
 * LJ (L + J) > Ǉ
 * ng (n + g) > ŋ
 * NG (N + G) > Ŋ
 * nj (n + j) > ǌ
 * Nj (N + j) > ǋ
 * NJ (N + J) > Ǌ
 * oe (o + e) > œ
 * OE (O + E) > Œ or ɶ
 * ou (o + u) > Ȣ (majiscule) or ȣ (minuscule)
 * qp (q + p) > ȹ
 * ſs (ſ + s) or ſz (ſ + z) > ß (ẞ when capitalized)
 * st (s + t) > ﬆ
 * ſt (ſ + t) > ﬅ
 * ue (u + e) > ᵫ