The merger of *kt with *t is regular in Slavic (except before *i, when the whole cluster was palatalised: *kti > *tjI, as in *nokti- > *notjI 'night'). In Danish, xt > t (as in nat 'night', let 'light', ret 'right'; same in English, where only the spelling <gh> indicates the original pronunciation), so the words you cite represent the regular development of PGmc. *flext-.
----- Original Message -----
From: tgpedersen
Sent: Saturday, September 28, 2002 11:32 AM
Subject: [tied] Re: sica

What would cause the -k- to disappear from *pl-kt-?
(BTW Da. fletning "braid", fletværk "wickerwork")