Even the old meaning (election) of the noun is still in (rare) use:

"Die Kür der Deutschen Weinkönigin..."

I guess the really rare verb "kören" (rank males for breeding) is related too.

Whether "erkiesen" (very, very rare for elect) is related as well I don't know, but one may guess so from the PP "erkoren" or even "auserkoren" which I only know from old Christian songs:

"...von einer Jungfrau auserkoren"

Wolfgang