Ge-strangian

According to the Old English Dictionary:

-strongian;

ge-strangian

p. ode, ade; pp. od, ad [strangian to strengthen] To make strong, strengthen, confirm, establish; rōbŏrāre, corrōbŏrāre, confortāre, conflrmāre :-- Ðá wolde he heora geleáfan gestrangian and getrymman then would he strengthen and confirm their belief, Homl. Th. i. 152, 34. Ic gestrangige confirmo, Cod. Dipl. Kmbl. iii. 349, 26: 350, 34. Ic heortan mannes gestrangie ego cor hominis confirmo, Th. Anal. 29, 1; Earm mín gestrangaþ hine brachium meum confortābit eum, Ps. Spl. 88, 21: Salm. Kmbl. 477; Sal. 239. He gestrangode hine illos confortāvĕrit, Bd. 1, 23; S. 485, 16. Bebeód Iosue and gestranga hine præcĭpe Iosue et corrōbŏra eum, Deut, 3, 28. Ne biþ gestrangod man non confortēmur hŏmo, Ps. Spl. 9, 20: Ps. Th. 138, 4, 15. Wes ðú gestrangad and ne ondrǽd ðú ðé be thou strengthened and fear not, Blickl. Homl. 231, 2: Lk. Bos. 1, 80. Israéla folc wǽron swýðe gestrangode fīlii Israel sunt rōbŏrāti nĭmis, Ex. 1, 7: Ors. 6, 35; Bos. 131, 1. ge-strangian