Lexical Definition

‎תְּדִירָא‎ tᵉdîyrâʼ (ted-ee-raw') continuance ^A:N-F
(Aramaic) from ‎דּוּר‎ in the original sense of enduring

continually.

• permanence, i.e. (adverb) constantly

1) continuance, continuity, perpetuity
1a) constantly (as adverb)

Brown-Driver-Briggs

Hebrew form: דּוּר
‎תְּדִירָא‎ noun feminine continuance (ᵑ7 id.; see Biblical Hebrew ‎דּוּר‎); — absolute in phrase ‎׳‎‎בִּת‎ continually Dan 6:17*; Dan 6:21*.

Brown-Driver-Briggs References