Lexical Definition

‎יַצַע‎ yatsaʻ (yaw-tsah') to lay H:V
a primitive root

make (one's) bed, [idiom] lie, spread.

1) to spread out, make a bed
1a) (Hiphil) to lay, spread out
1b) (Hophal) to be laid, be spread out

Usage: 4 forms in 4 verses
Form Translated As     In Verse(s)
יֻצַּ֣ע it is spread as a bed Isa.14.11
יֻצַּ֖ע it was spread as a bed Esth.4.3
יַצִּ֔יעַ he spreads as a bed Isa.58.5
וְאַצִּ֖יעָה and I will spread as a bed Ps.139.8

Brown-Driver-Briggs

[‎יָצַע‎] verb Hiph`il lay, spread, late (Ges«GKC:71»§ 71; Aramaic ‎יְצַע‎ Pa`el, Aph`el id., also expound, 'auslegen;' Arabic is put or lay (down, on a place, etc.), but = Aramaic ‎ע‎) —

Hiph`il Imperfect ‎יַצִּיעַ‎ Isa 58:5 ‎אַצִּ֫יעָה‎ Ps 139:8 lay, spread out, followed by accusative ‎שׂק ואפר‎ Isa 58:5 ‎שׁאול‎ Ps 139:8 if I spread out Sh®°ôl (as my couch). Hoph`al Imperfect ‎יֻצַּע‎ (Pu`al Perfect De Di and others) be laid, spread; subject ‎שׂק ואפר‎ Esth 4:3 subject ‎רִמָּה‎ worm, as couch for king of Babylon Isa 14:11.

Brown-Driver-Briggs References

Book Refs
Esther 4:3
Psalms 139:8
Isaiah 14:11 · 58:5