رعش

رَعِشٌ ذ , applied to a man, (TA,) or to an old man, (A,) Trembling, quivering, quaking, or shivering; (A, TA;) as also ↓ رَعِيشٌ and ↓ مُرْتَعِشٌ (TA) and ↓ مُرْعَشٌ; (A;) and so ↓ رَعْشَنٌ, applied to a man; (S;) in which last, the ن is augmentative. (S, K.) And in like manner, ↓ رَعْشَنٌ, applied to a hecamel; (S, TA;) and رَعِشَةٌ (A) and ↓ رَعْشَنَةٌ (TA) and ↓ رَعْشَاآءُ, (A, K, TA,) applied to a she-camel; (K, TA;) or to a beast (دَابَّةٌ), (A,) and the last of these epithets applied to a she-ostrich; (S;) (tropical:) That shakes himself, or herself, (S, A, K,) in going along, (S, K,) by reason of speed, (K,) or from sharpness of spirit, and briskness: (A:) or ↓ رعشاء, applied to a she-camel, signifies longnecked. (TA.) And ↓ رَعُوشٌ, applied to a she-camel, Whose head shakes by reason of old age; (S, K;) as also رَعُوسٌ; (S, TA;) or, as the latter is expl. in the K, by reason of briskness, or sprightliness. (TA.) ― -b2- (tropical:) Cowardly; or a coward; (S, K;) as also ↓ رِعْشِيشٌ (K) and ↓ رَعْشَنٌ, (K in art. رعشن,) and رَعِشُ اليَدَيْنِ; (A, TA;) one who trembles in war by reason of cowardice. (TA.) ― -b3- (assumed tropical:) Quick; swift; applied to a male ostrich; (Kh;) as also ↓ رَعْشَنٌ, applied to the same, and to a camel; fem. with ة; (K in art. رعشن;) and ↓ رَعْشَاآءُ, applied to a female ostrich: (Kh, K:) or the last, thus applied, signifies tall. (TA.) ― -b4- فُلَانٌ رَعِشٌ اـِلَى القِتَالِ, and اـِلَى المَعْرُوفِ; (En-Nadr, A, K, TA;) and ↓ رِعْشِيشٌ; (K;) (tropical:) Such a one is quick to fight, and to do good, or confer a favour or benefit. (En-Nadr, A, K.) In the K it is added that it thus has two contr. significations; but this requires consideration. (TA.)