yasad

The picture behind this word is a builder laying the first course of stone in the ground, the base on which everything else will stand. From that concrete image the word reaches in two directions. Used of an actual building, a city, or a wall, it names the literal act of laying a foundation, the unglamorous first step that decides whether the whole structure will hold.

Applied to God and the world, the same word says that He founded the earth, the mountains, and the heavens, setting them in place so firmly that they cannot be moved. Here the word is doing more than describing the start of creation; it is claiming that the world rests on a stable base that God himself put down.

From there it stretches once more to things that are not built at all. A king can found a rule, God can found his enduring promises, and a person can be appointed to a fixed office. In every case the same idea carries over: something is set down so deliberately and so solidly that it will stand. The senses below are shades of that one act, from stone in the ground to a decree that will not be revoked.

In two places the same spelling carries a different idea altogether. Hostile leaders gather and settle on a plan, fixing their purpose against a target. The word here is tied to the idea of a closed council that reaches a firm decision, and in both cases it is paired with a word meaning together, so the sense is a group locking arms in a shared scheme.

Many scholars treat this as a separate word that happens to be spelled like the verb for founding, while others see one root whose core idea of setting something firmly extends to a group settling on a fixed plan. Either way, an English reader needs a different word here, conspire or plot rather than found, which is why it is listed as its own meaning.