عقب

6 يَتَعَاقَبَانِ ذ (T, S, O, Msb, TA) They follow each other [ by turns ]; or alternate; (T, Msb, TA;) one coming and the other going; (TA;) said of the night and the day; (T, Msb;) or as the night and the day; (S, O, TA;) as also ↓ يَعْتَقِبَانِ. (TA.) You say, تَعَاقَبَ المُسَافِرَانِ عَلَى الدَّابَّةِ The two travellers rode upon the beast, each of them in his turn. (TA: and the like is said in the Msb.) And تعاقبا عَمَلًا They two did a work, or deed, by turns, or alternately: syn. اِرْتَوَحَاهُ, (K and TA in art. روح,) and تَرَاوَحَاهُ (TA in that art.) And تعاقبا They helped each other by turns. (TA.) And بِالضَّرْبِ ↓ يَعْتَقبَانِهِ They two ply him by turns with beating (A.) See also 3, near the beginning. التَّعَاقُبُ also signifies The coming to water [ by turns, or] time after time. (TA.)