طدودِينٌ, (S, TA,) the latter word formed by transposition from وَاطِدٌ; (M, TA;) and عَادَةٌ طَادِيَةٌ, (S, K,) the latter word said to be formed by transposition from وَاطِدَةٌ, (S,) A custom, or habit, that is constant, settled, or established; old, or inveterate. (S, K.) طَادٍ and وَاطِدٌ are also expl. as meaning Continuous; or constant and uninterrupted. (TA in art. وطد.)