LSJ
Pass., to be crucified together with, τινι Ev. Marc. 15.32, Ep. Gal. 2.20.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
TBESG
συν-σταυρόω (Rec. συσ-), -ῶ,
to crucify together with: pass., with dative, Jhn.19:32; id. before σύν, Mat.27:44, Mrk.15:32. Metaph., of the mystical death of the Christian with Christ: Rom.6:6, Gal.2:20 (Eccl.).†
(AS)
Translators Brief lexicon of Extended Strongs for Greek based on Abbot-Smith, A Manual Greek Lexicon of the New Testament (1922) (=AS), with corrections and adapted by Tyndale Scholars