Strong’s Hebrew
H4702 — matstsa`
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
מַצָּע
matstsa` — pronounced mats-tsaw
from 3331; a couch:--bed. see H03331
1 occurrence in the KJV.
Isaiah 28:20
For the bed is shorter than that a man can stretch himself on it: and the covering narrower than that he can wrap himself in it.