verb form III hāyathahu haAyavahu هَايَثَهُ Bookmark Bookmarked Share 1., verbal noun مُهَايَثَهُ, He contended, or disputed, with him for superiority in abundance, or multitude; as, for instance, of wealth, or of dependants or followers. (TK.) مُهَايَثَةٌ is synonym with مُكَاثَرَهٌ. (K.) 2.See 10.