سيخ1 سَاخَ, aor. ـِ inf. n. سَيْخٌ and سَيَخَانٌ, i. q. رَسَخَ and ثَاخَ [both app. as signifying It sank into the ground: or by the former may here be meant it was, or became, firm, steady, steadfast, stable, fixed, fast, settled, or established]. (K.) See also 1 in art. سوخ, in two places.سِيَاخٌ A building of clay, (JK, TK,) of any kind: (JK:) pl. سُيُوخٌ. (JK, TK.) In the copies of the K, بُنَاةُ الطِّينِ is erroneously put for بِنَآءُ الطِّينِ. (TK.)