διερείδω · diereidō — LSJ
prop up
prop up, Plu. Vit.pud. 2.529c, Luc. VH 2.1.
2 hold apart, thrust apart
hold apart, as the collar-bones do the shoulders, Sor. 2.63: so metaph., of vowels, thrust apart, D.H. Comp. 22.
II lean upon, lean oneʼs, on
Med., lean upon, τινί E. Hec. 66: c. acc., σχῆμα βακτηρίᾳ δ. lean oneʼs body on . . , Ar. Ec. 150.
2 set oneself firmly, struggle
δ. πρός τι set oneself firmly, struggle against . . , Plb. 21.24.14, Plu. Phil. 17, prob. in Phld. D. 3Fr. 32; περί τινος for a thing, Plb. 5.84.3.