Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
καταπλάσσει plasters over LXX.Job.37.11
κατάπλασαι plaster LXX.Isa.38.21

Liddell-Scott-Jones

καταπλάσσω (kataplassō) to plaster G:V

καταπλάσσω-πλάσσω,

Attic dialect καταπλάσσωπλάττω, future -πλάσω [], plaster over, [Refs 6th c.BC+]:—passive, [καταπλάσσωπεπλασμένη ψιμυθίῳ Aristophanes Comicus [{5-6th c.BC}] “Ecclesiazusae” 878; κηρῷ 4th c.BC: Aristoteles Philosophus “Historia Animalium” 624a13 ">Refs 6th c.BC+]:—middle, τὴν κεφαλὴν κατ᾽ ὦν ἐπλάσατο plastered her own head, [καταπλάσσωπλάσσονται πᾶν τὸ σῶμα">Refs 5th c.BC+] this they plaster over their whole body, [Refs 5th c.BC+] —passive, [καταπλάσσωπλαττομένων ἢ ἐπιπλαττομένων 1st c.BC: Philodemus Gadarensis Epigrammaticus “Mus.” p.52K. ">Refs 1st c.BC+]

__2 in Medicine texts, plaster or poultice, [Refs 5th c.BC+], +others; also, apply as a plaster or poultice, in passive, [Refs 1st c.AD+].
__3 metaphorically, καταπλάσσωπεπλασμένος, ={καταπλάσσωπλαστός} [Refs 2nd c.AD+]. the artificial sound produced by stopping the higher notes in a flute, [Refs 1st c.AD+]