Usage: 3 forms in 19 verses
Form Translated As     In Verse(s)
υπερασπιστήσ He is a defender LXX.2Sam.22.31 • LXX.Ps.18.30
defender LXX.Ps.27.1 • LXX.Ps.28.8 • LXX.Ps.33.20 • LXX.Ps.37.39 • LXX.Ps.115.9 • LXX.Ps.115.10 • LXX.Ps.115.11
my defender LXX.2Sam.22.3 • LXX.Ps.18.2 • LXX.Ps.28.7 • LXX.Ps.31.4 • LXX.Ps.40.17 • LXX.Ps.59.11 • LXX.Ps.144.2
υπερασπιστήν a defending LXX.Ps.71.3
a defending God LXX.Ps.31.2
υπερασπιστά our defender LXX.Ps.84.9

Liddell-Scott-Jones

ὑπερασπιστής (huperaspistēs) a defender G:N-M

ὑπερασπιστής-ιστής, οῦ, ὁ,

one who holds a shield over, protector, champion, [Refs 1st c.AD+]: feminine ὑπερασπιστής-ίστρια, ἡ, [LXX]