اس

2 أسّسهُ ذ , (S, M, Msb,) inf. n. تَأْسِيسٌ, (S, Msb, K,) He founded it; or made, or laid, a foundation, or basis, for it; (S, * Msb;) namely, a building, (S,) or a wall: (Msb:) he marked out the limits of it, (namely, of a house,) and raised its foundations: he built its foundation, or basis: (K:) he commenced it; namely, a building; as also ↓ أَسَّهُ, aor. يَؤُسُّهُ, inf. n. أَسَّ: (M:) he built it; namely, a house; (TA;) as also ↓ أَسَّهُ. (K.) You say, هٰذَا تَأْسِيسٌ حَسَنٌ [ This is a good founding, or foundation ]. (TA.) And مَنْ لَمْ يُؤَسِّسْ مِلْكَهُ بِالعَدْلِ هَدَمَهُ (tropical:) [ He who does not lay the foundation of his property with equity, or justice, destroys it ]. (A, TA.) ― -b2- أسّس زَادًا: see زَادَ in art. زود.