1 كَثُرَ ذ , aor. كَثُرَ , (S, Msb, K,) inf. n. كَثْرَةٌ (Msb, TA) and كِثْرَةٌ , or this is erroneous, (Msb,) [and perhaps كُثْرَةٌ , and كُثْرٌ , or these are simple substs., (see كَثْرَةٌ , below,)] and كَثَارَةٌ , (TA,) It was, or became, much, copious, abundant, many, numerous, great in number or quantity; it multiplied; it accumulated. (S, K, TA.) كَثُرُوا عَلَيْهِ فَغَلَبُوهُ [ They multiplied against him and overcame him. ] (TA in art. غرق ). [ كَثُرَ مِنْهُ كَذَا Such a thing proceeded from him, or was done by him, much, or often. ] See also 4. -A2- كَاثَرُوهُمْ فَكَثَرُوهُمْ : see 3.

3 كَاثَرُوهُمْ فَكَثَرُوهُمْ ذ , (S, K,) inf. n. of the former, مُكَاثَرَةٌ , (S,) [and aor. of the latter, accord. to analogy, كَثُرَ ,] They contended with them for superiority in number, and overcame them therein, (S, K, TA,) or surpassed, or exceeded, them in number. (TA.) -A2- See also 10.

4 اكثرهُ ذ He made it much, abundant, many, or numerous, he multiplied it; as also , (Msb, K, TA,) inf. n. تَكْثِيرٌ . (K.) -b2- أَكْثَرْتُ مِنَ الشَّىْءِ and مِنْهُ signify the same; (S, Msb;) i. e., أَكْثَرْتُ فِعْلَهُ [ I did the thing much; lit., I made the doing of it much ]: or أَكْثَرْتُ مِنَ الأَكْلِ وَنَحْوِهِ [ I ate, and the like, much ] presents an instance of pleonasm, [being for أَكْثَرْتُ الأَكْلَ وَنَحْوَهُ ,] accord. to the opinion of the Koofees: or it is an instance of explication [of the vague signification of the verb], accord. to the opinion of the Basrees; the objective complement being suppressed, and the complete phrase being أَكْثَرْتُ الفِعْلَ مِنَ الأَكْلِ : and so in the like cases. (Msb.) [You say also أَكْثَرَ فِى الكَلَامِ He spoke, or talked, much; was profuse, or immoderate, in speech, or talk. And in like manner, فِى الأَمْرِ He did, acted, or occupied himself, much in the affair. ] -b3- اكثر [as an intrans. v.] signifies أَتَى بِكَثِيرٍ [ He brought, or he did, or he said, much ]. (K.) -b4- Also, [ He became rich; he abounded in property; ] his property became much, or abundant. (S, Msb, K.) -A2- اكثر It (a palm-tree) produced, or put forth, its طَلْع [or spadix ], (S, K,) i. e., its كَثَر , whence the verb. (TA.) -A3- [ مَا أَكْثَرَ مَالَهُ How abundant is his wealth! or how numerous are his cattle! ]

5 تكثّر ذ [ He endeavoured to acquire much, or abundance, of a thing]. You say تكثّر مِنَ العِلْمِ لِيَحْفَظَ [ He endeavoured to acquire much knowledge, in order that he might preserve it in his memory ]. And تَكثّر مِنْهُ لِيَفْهَمَ [ He endeavoured to acquire much thereof in order that he might understand ]. (A.) See also 10. -b2- He made a vain, or false, boast of abundance, or riches; or a boast of more than he possessed; and invested himself with that which did not belong to him. (TA, voce تَشَبَّعَ , which signifies the same.) You say تكثّر بِمَا لَيْسَ عِنْدَهُ He made a boast of abundance, or riches, which he did not possess; syn. تَشَبَّعَ . (Msb, art. شبع .) And فُلَانٌ يَتَكَثَّرُ بِمَالِ غَيْرِهِ [ Such a one makes a vain or false show of abundance or riches with the wealth or property of another ]. (S.)