تَأْرِيخٌ
1.
verbal noun of 2.
2.
Also, [as a subst., generally pronounced without ء,] A date; an era; an epoch; (Msb;) and
أُرْخَةٌ is a subst. [signifying the same,] from أَرَخَ. (K.) تَأْرِيخُ الهِجْرَةِ is The era, or epoch, of the Emigration [or Flight (for such it really was)] of Mohammad [from Mekkeh to El-Medeeneh], (L, Msb,) which his companions, in the time of 'Omar, agreed to make their era, commencing the year from the first appearance of the new moon of [the month] ElMoharram, [two months before the Flight itself,] and making the day to commence from sunset: (Msb:) it is also called تَأْرِيخَ المُسْلِمِينَ
the era, or epoch, of the Muslims. (L.)
3.
Also The utmost limit, term, or time, of anything: whence the saying, فُلَانٌ تَأْرِيخُ قُوْمِهِ
Such a one is the person from whom date the nobility, or eminence, and dominion, or authority, of his people. (Es- Soolee, Mgh, TA.)
4.
[Also, A chronicle; a book of annals; a history: plural تَوَارِيخُ, from تَوْرِيخٌ.]