Cuneiform times of Parthian Empire (250 BC – AD 226). The last known cuneiform inscription, an astronomical text, was written in 75 AD. The complexity of the system prompted the development of a number of simplified versions of the script. Old Persian was written in a subset of simplified cuneiform characters known today as Old Persian cuneiform. It formed a semi-alphabetic syllabary, using far fewer wedge strokes than Assyrian used, together with a handful of logograms for frequently occurring words like "god" and "king". Ugaritic was written using the Ugaritic alphabet, a standard Semitic style alphabet (an "abjad") written using the
U (cuneiform) Both Ù (cuneiform) and ú are in the top 25 most used signs, but E (cuneiform) and "u (cuneiform)" are not; other vowels (or combination) in the 25 are: a (cuneiform), i (cuneiform), and ia (cuneiform), (which has a secondary use as suffix, ""-mine"", or ""my"", thus in top 25 most used signs). Suffix ""iYa"" is used in the Middle East\Southwest Asia at present day to end placenames, or other names: "My Xxxxx". The use of "u" for numeral 10 has been explained above. It is used in the letters from Tushratta, speaking of the ancestral relations with former father