Old English Latin alphabet

The Old English Latin alphabet generally consisted of about 24 letters, and was used for writing Old English from the 8th to the 12th centuries. Of these letters, most were directly adopted from the Latin alphabet, two were modified Latin letters (Æ, Ð), and two developed from the runic alphabet (Ƿ, Þ). The letters Q and Z were essentially left unused outside of foreign names from Latin and Greek. The letter J had not yet come into use. The letter K was used by some writers but not by others. W gained usage in late Old English under Norman influence, as seen towards the end of the Peterborough Chronicle manuscript, though in this period W was still a ligature and not a full-fledged letter. The manuscripts MS Harley 208, Stowe MS 57, and Cotton Titus D 18 differ in how they arrange the non-standard Old English letters (Harley has Ƿ–Ð–Æ–Þ, Stowe has Ƿ–Ð–Þ, Titus has Ƿ–Þ–Ð), but all three manuscripts place them after the standard Latin letters.



History
Old English was first written in runes (futhorc) but shifted to a (minuscule) half-uncial script of the Latin alphabet introduced by Irish Christian missionaries from around the 8th century. This was replaced by Insular script, a cursive and pointed version of the half-uncial script. This was used until the end of the 12th century when continental Carolingian minuscule (also known as Caroline) replaced the insular, along with a shift in spelling conventions toward the Old French alphabet, leading to Middle English.

The letter ðæt $⟨ð⟩$ (called eth or edh in modern English) was an alteration of Latin $⟨d⟩$, and the runic letters thorn $⟨þ⟩$ and wynn $⟨ƿ⟩$ are borrowings from futhorc. Also used was a symbol for the conjunction and, a character similar to the number seven ($⟨⁊⟩$, called ond or a Tironian et), and a symbol for the relative pronoun þæt, a thorn with a crossbar through the ascender ($⟨ꝥ⟩$). Macrons $⟨¯⟩$ over vowels were used, though rarely, to indicate long vowels. A macron was also used occasionally as a nasal indicator (sort of like a tilde in modern phonetic writing) if the vowel was succeeded by an s (ms or ns would turn into ◌̄s).