اٰسِنۡ

[1] أَسَنَ , aor. يأْسُنُ (S, M, Mgh, Msb, K) and يَأْسِنُ , (S, M, K,) inf. n. أُسُونٌ (S, M, Msb) and أَسْنٌ; (M;) and يَأْسَنُ, aor. اَسَنَ , (S, M, &c.,) inf. n. أَسَنٌ; (S, M, Msb;) said of water, i. q. أَجَنَ and أَجِنَ; (S, K;) [i. e.] It became altered for the worse (M, Mgh, Msb) in odour, (M,) [or in taste and colour, from some such cause as long standing, (see أَجَنَ,)] but was drinkable; (M;) or so as not to be drunk, (Msb, TA,) thus differing from أَجَنَ and أَجِنَ. (TA.) [See also أَصِلَ.]