Core sense — a male ape, or the young of an ape; a sort of datesgenerated
1prettier than the ape—أَمْلَحُ مِنْ رُبَّاحٍ
A' Obeyd; also رُبَاحٌ, of the dialect of El-Yemen, and رُبَحٌ: the male ape [simia caudata, clunibus nudis]; or the young one of an ape; or apes, as a collective generic noun — so explained under نصح, where the last is said to be originally رُبَاحٌ. Plural of the first: رَبَابِيحُ.
prettier than the ape—رُبَاحٍ
1.1a sort of dates of El-Basrah—رُبُّ رُبَّاحٍ
Also رُبَاحٍ; apparently derived from the meaning above.
1.2a small young weaned camel; small young camels—رُبَّاحٌ
So according to some; the same as حَاشِيَةٌ, slender in the bones and lean in the body.
But A Heyth asks how it can mean small young weaned camels, when a poet applies to it the adjective ثَنِىّ, and the ثنىّ is five years old; and Khidāsh Ibn-Zuheyr, in a verse, speaks of a ربّاح breathing hard in labour so that her young one might come forth.
Show Lane's original text
(A' Obeyd, S, A, L, K) and رُبَاحٌ , (A, TA,) the latter of the dial. of El-Yemen, (TA,) and رُبَحٌ , (L, TA,) The male ape; (S, A, L, K;) [simia caudata, clunibus nudis: (Forskål, "Descr. Animalium" &c., p. iii.:)] or the young one of an ape: (TA:) or apes [as a coll. gen. n.]: (TA in art. نصح , in explanation of the last, which is there said to be originally رُبَاحٌ :) pl. of the first رَبَابِيحُ . (TA.) One says أَمْلَحُ مِنْ رُبَّاحٍ and رُبَاحٍ , meaning [Prettier] than the ape. (A, TA.) [Hence, app.,] رُبُّ رُبَّاحٍ (Lth, A, K) or رُبَاحٍ (A) A sort of dates (Lth, A, K) of ElBasrah. (Lth.) Also, (K,) accord. to some, (TA,) رُبَّاحٌ signifies A small young weaned camel, (K,) and small young camels, syn. حَاشِيَةٌ , (TA,) slender in the bones and meagre in the body: (K:) but A Heyth asks, How can it mean small young weaned camels, seeing that a poet applies to it the epithet ثَنِىّ , and the ثنىّ is five years old? and Khidásh Ibn-Zuheyr, in a verse cited by Sh, speaks of a ربّاح breathing hard in labour, in order that her young one might come forth. (TA.) See also رُبَحٌ .