Why there is t- in German tausend "thousand"?

From: Grzegorz Jagodziński
Message: 71516
Date: 2013-11-06


Germanic *th yielded d in German. So, we would expect *dausent "1000" (cf. Eng. thousand, Old Saxon thu^sundig etc. (+ attestation of t- in Balto-Slavic). Dutch duizend is regular, as well as OHG du^sunt is.
 
If the MHD and modern German forms with t- are borrowings, from what dialect/language?
 
And if their development was regular, are there more German words with t- on the place of Germanic th-?
 
Kluge only states "Lautlich zu erwarten wäre nhd. d-" - this is just statement, no way explanation. If d- was expected like Kluge says, why t-?