A primitive root; to stretch out -- spread out.
H4969. mathach
[מָתַח] verb spread out (Late Hebrew id.; Aramaic , מְתַח; Arabic be long, long (probably load-word); compare perhaps Assyrian matâ—u, direct the eyes toward); — only
Qal Imperfect3masculine singular suffix וַיִּמְתָּחֵם Isaiah 40:22 and he (׳י) hath spread them (the heavens) out as a tent to dwell in.