Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
διέστρωσαν they spread carpets LXX.1Sam.9.25
διέστρωσα I spread LXX.Prov.7.16

Liddell-Scott-Jones

διαστρώννυμι (diastrōnnumi) to spread with carpets G:V

διαστρώννυμι,

spread a couch, etc., κλισίαν [Refs 2nd c.AD+]: absolutely, spread, [LXX]:—passive, [Refs 3rd c.BC+]

__II passive, of titles to property, to be registered, [Refs 3rd c.AD+]

LSJ Scripture Refs: LXX.1Kgs.9.25