Shin (letter) languages, as follows: In the Arabic alphabet, ' is at the original (21st) position in Abjadi order. A letter variant ' takes the place of Samekh at 15th position. "" represents , and is the 13th letter of the modern alphabet order and is written thus: The Arabic letter "šīn" was an acronym for "something" ( "šayʾ(un)" ) meaning the unknown in algebraic equations. In the transcription into Spanish, the Greek letter "chi" (χ) was used which was later transcribed into Latin "x". According to some sources, this is the origin of "x" used for the unknown in the equations.
History of the Greek alphabet games in honor of the Muses. The majority of the letters of the Phoenician alphabet were adopted into Greek with much the same sounds as they had had in Phoenician. However, Phoenician, like other Semitic scripts, has a range of consonants, commonly called gutturals, that did not exist in Greek: "’āleph" , "hē" , "ḥēth" , and "‘ayin" . Of these, only "ḥēth" was retained in Greek as a consonant, eta, representing the sound in those dialects that had an [h], while the consonants "’āleph, hē" and "‘ayin" became the vowels alpha , e and o , respectively. Phoenician had