Usage: 7 forms in 36 verses
Form Translated As     In Verse(s)
δερρεί her hide covering LXX.Judg.4.18
δέρριν a hide covering LXX.Ps.104.2
hide covering LXX.Exod.26.9LXX.Zech.13.4
δέρρεών for my hide coverings LXX.Jer.10.20
δέρρεωσ hide covering LXX.Exod.26.8LXX.Exod.26.8LXX.Exod.26.10LXX.Exod.26.10LXX.Exod.26.12LXX.Exod.36.15LXX.Exod.36.15LXX.Exod.36.17LXX.Exod.36.17
δέρρεων hide coverings LXX.Exod.26.12LXX.Exod.26.13LXX.Exod.26.13LXX.1Chr.17.1
δέρρεσι hide coverings LXX.Exod.26.8LXX.Exod.26.12LXX.Exod.36.15
δέρρεισ hide coverings LXX.Exod.26.7LXX.Exod.26.7LXX.Exod.26.9LXX.Exod.26.9LXX.Exod.26.11LXX.Exod.36.14LXX.Exod.36.14LXX.Exod.36.16LXX.Exod.36.16LXX.Exod.36.18LXX.Num.4.25LXX.Song.1.5LXX.Isa.54.2
my hide coverings LXX.Jer.4.20
of my hide coverings LXX.Jer.10.20

Liddell-Scott-Jones

δέρρις (derris) a hide covering G:N-F

δέρρις, εως, ,

(Attic dialect form of Δέρσις, compare δέρω) skin, δ. τριχίνη [LXX+1st c.BC+]

__II leathern covering, of a jerkin, [Refs 5th c.BC+]; of a curtain, [Refs 5th c.BC+]
__III in plural (singular, [Refs 3rd c.BC+], screens of skin or hide, hung before fortifications to deaden the enemy's missiles, [Refs 5th c.BC+]: generally, curtain, [LXX+1st c.BC+]

LSJ Scripture Refs: LXX.Zech.13.4LXX.Exod.26.7