Usage: 3 forms in 19 verses
Form Translated As     In Verse(s)
υπερασπιστήσ He is a defender LXX.2Sam.22.31LXX.Ps.18.30
defender LXX.Ps.27.1LXX.Ps.28.8LXX.Ps.33.20LXX.Ps.37.39LXX.Ps.115.9LXX.Ps.115.10LXX.Ps.115.11
my defender LXX.2Sam.22.3LXX.Ps.18.2LXX.Ps.28.7LXX.Ps.31.4LXX.Ps.40.17LXX.Ps.59.11LXX.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, ,

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