Extended Strong's Greek Lexicon (Abbott-Smith based)
perpetual
Usage: δι-ηνεκής, -ές (διήνεγκα, aorist of διαφέρω) [in Sm.: Psa.48:15, 89:30 ;] unbroken, continuous: adverbially, εἰς τὸ δ., continually (for exx., see Deiss., BS, 251), Heb.7:3 10:1, 12 10:14† (AS)