Latin consoc(e)rus

From this word ( consoc(e)rus) admited Jokl that Albanian has its words:
krusk and kruskë

Keeping in mind the Appendix Probi ( see acer= acru) we expect there
could be a form like
consocrus for the known "consocerus"
Which is the path of transformations here from latin "consocru" to
Albanian "krusk"?