يَبِسَ
1.
, aorist يَيْبَسُ (S, M, A, Msb, K) and يَابَسُ (K) and يَيْبِسُ, (S, M, Msb, K,) which latter is extr., (S, M, K,) so that it is like يَيءِسَ, (TA,) verbal noun يُبْسٌ (S, M, Msb *) and يَبَسٌ (M, Msb, * TA) and يَبْسٌ (M) and يُبُوسَةٌ, (K [but not there said to be a verbal noun, being only mentioned there in an explanation of the word يَبَسٌ, and according to general rule it would be a verbal noun of يَبُسَ, which is probably an obsolete form,]) It was, or became, dry; or it dried, or dried up; after having been moist, humid, succulent, or the like: (A, Msb, K:) or, [rather,] it was, or became, dry; or it dried, or dried up: and also, [but perhaps tropically,] it was, or became, stiff, rigid, tough, firm, resisting pressure, or hard: [opposite of
رَطُبَ:] يُبْسٌ signifying the opposite of
رُطُوبَةٌ: (M:) يُبُوسَةٌ is a quality which necessarily implies difficulty of assuming form and of becoming separated and of becoming united: (KT:) and
اِتَّبَسَ, (S, M, K,) of the measure اِفْتَعَلَ, (S,) the ى being changed into ت, (M,) as well as [its original form] اِيتَبَسَ, (TA [there written اتَبَسَ because it has the conjunction وَ prefixed to it]) aorist [of the former] يَتَّبِسُ and [of the latter] يَاتَبِسُ, (M,) signifies the same as يَبِسَ: (M, K:) or is quasipass. of
يَبَّسَهُ [and therefore signifies it became dried, or dried up; &c.]; (Ibn-Es-Sarráj, S;) [as also
تيبّس, occurring in the TA, article عكس.] You say, يَبِسَ النَّبَاتُ [The plant, or herbage, became dry; &c.] (S, K.) And يَبِسَتِ الأَرْضُ
The land lost its water and moisture; its water and moisture went away. (M.)
2.
[Hence, يَبِسَتْ طَبِيعَتُهُ (assumed tropical:) He became costive. And] يَبِسَ
مَا بَيْنَهُمَا (tropical:) [That friendship which was between them two became withered; (see 2, and see also ثَرًى;) i. e.,] they became disunited, each from the other; the bond of friendship that united them, each to the other, became severed; synonym تَقَاطَعَا. (A, TA.)