*** Welcome to piglix ***

Tāʾ marbūṭa

Phonemic representation t (also θ, s)
Position in alphabet 22
Numerical value 400

Taw, tav, or taf is the twenty-second and last letter of the Semitic abjads, including Phoenician Tāw Phoenician taw.svg, Hebrew Tav ת‎, Aramaic Taw Taw.svg, Syriac Taw ܬ, and Arabic Tāʼ ت (in abjadi order, 3rd in modern order). Its original sound value is /t/.

The Phoenician letter gave rise to the Greek tau (Τ), Latin T, and Cyrillic Т.

Taw is believed to be derived from the Egyptian hieroglyph meaning "mark"


...
Wikipedia

...