عِيدٌ
1.
, originally عِوْدٌ, the و being changed into ى because of the kesreh before it, (Az, TA,) An occurrence that befalls, or betides, one, or that happens to one, [or returns to one, of some former affection of the mind or body, i. e.] of anxiety, (S, O, K,) or of some other kind, (S, O,) of disease, or of grief, (O, K,) and the like, (K,) of affliction, and of desire: and according to Az, the time of return of joy and of grief. (TA.)
2.
[And hence, A festival; or periodical festival;] a feast-day; (KL;) i. q.
مَوْسِمٌ; (Msb;) any day on which is an assembling, or a congregating; (K;) [and particularly an anniversary festival:] so called because it returns every year with renewed joy: (IAar, TA:) or, from عَادَ, because people return to it: or from عَادَةٌ, “ a custom,” because they are accustomed to it: (TA:) plural أَعْيَادٌ; the ى being retained in the plural because it is in the singular, or to distinguish it from أَعْوَادٌ the plural of عُودٌ; (S, O, Msb;) for regularly its plural would be أَعْوَادٌ, like as أَرْوَاحٌ is plural of رِيحٌ. (TA.) [The two principal religious festivals of the Muslims are called عِيدُ الأَضْحَى
The festival of the victims (see article ضحو and ضحى) and عِيدُ الفِطْرِ
The festival of the breaking of the fast after Ramadán.] The diminutive of عِيدٌ is
عُيَيْدٌ; the ى being retained in it like as it is retained in the plural (TA.)
3.
See also عَادَةٌ, in two places.