Timay al-Imdid (Arabic: تمي الإمديد Timayy al-Imdīd, Coptic: ⲑⲙⲟⲩⲓ ⲡϭⲓⲙⲉⲛⲧⲏϯ thmoui pčhimentēti), the ancient Thmuis[3] and Mendes, is a city and markaz in Dakahlia Governorate of Egypt.

[2] The name Timayy is derived from the Coptic word ⲑⲙⲟⲩ tmoui, meaning "island", a fairly common Coptic place name element.

In this case it is an abbreviation of Demotic tꜣ-mꜣw.t-n-pr-bꜣ-nb-ḏd.t "the island of Mendes".

The second part Amdid (older form Mandid or Mandadi) comes from Coptic: ⲡϭⲓⲙⲉⲛⲧⲏϯ, a compound toponym the first part of which is ϭⲓⲏ "border, edge" and the second one comes from Egyptian pr-bꜣ-nb-ḏd.t "temple of Aries of the lord of ḏdt" which is also the source of Ancient Greek: Μενδης.

[3] The 1885 Census of Egypt recorded Timay al-Imdid (as "Tami-el-Amdid") as a nahiyah under the district of El Senbellawein in Dakahlia Governorate; at that time, the population of the town was 1,338 (694 men and 644 women).