It (a thing) was, or became, closed or closed up, or stopped or stopped up, or repaired, and made firm or strong; quasi pass. of 1 in the first of the senses assigned to it above; synonym اِنْسَدَّ. (TA.)
2.
[Hence,] استكّت مَسَامِعُهُ (tropical:) His ears became stopped up, or deaf, (S, Msb, K, *) and narrow [in the aperture]. (S, K.)
3.
And استكّالنَّبْتُ (assumed tropical:) The herbage became luxuriant and dense, (S, K,) its interstices becoming closed up. (S.) And استكّت الرِّيَاضُ (assumed tropical:) The meadows became luxuriant and dense [in their herbage]. (As, TA.)