A bind rune or bindrune is a Migration Period Germanic ligature of two or more runes. They are extremely rare in Viking Age inscriptions, but are common in earlier (Proto-Norse) and later (medieval) inscriptions.
A boat whose mast is formed with the bind runes þ=r=u=t=a=ʀ= =þ=i=a=k=n, on the runestone Sö 158 at Ärsta, Södermanland, Sweden. The bind runes tell that the deceased was a strong thegn.
Cryptic runic inscription on a silver knife mount, with several bind runes
The "Derbyshire bone plate", showing the name Hadda with ligatured double ᛞ
A bind rune for the word runaʀ on the Sønder Kirkeby Runestone in Denmark
In writing and typography, a ligature occurs where two or more graphemes or letters are joined to form a single glyph. Examples are the characters ⟨æ⟩ and ⟨œ⟩ used in English and French, in which the letters ⟨a⟩ and ⟨e⟩ are joined for the first ligature and the letters ⟨o⟩ and ⟨e⟩ are joined for the second ligature. For stylistic and legibility reasons, ⟨f⟩ and ⟨i⟩ are often merged to create ⟨fi⟩ ; the same is true of ⟨s⟩ and ⟨t⟩ to create ⟨st⟩. The common ampersand, ⟨&⟩, developed from a ligature in which the handwritten Latin letters ⟨e⟩ and ⟨t⟩ were combined.
Wood type sorts with ligatures of (from left to right) ⟨fl⟩, ⟨ft⟩, ⟨ff⟩, ⟨fi⟩; in 20 Cicero = 240 Didot points ≈ 90.2328 mm (typeface Futura bold condensed)
A widely used Th ligature in a handwriting-style typeface
Ligatures "Th" and "Wh" illustration
"ß" in the form of a "ſʒ" ligature on a street sign in Berlin (Petersburger Straße). The sign on the right (Bersarinplatz) ends with a "tʒ" ligature ("ꜩ").
