סָמַךְ çâmak (H5564)

to prop (literally or figuratively); reflexively, to lean upon or take hold of (in a favorable or unfavorable sense)

1) to lean, lay, rest, support, put, uphold, lean upon 1a) (Qal) 1a1) to lean or lay upon, rest upon, lean against 1a2) to support, uphold, sustain 1b) (Niphal) to support or brace oneself 1c) (Piel) to sustain, refresh, revive

a primitive root;