help with title, please

[Joan C Biella]

It's one of the many kuntresim of I. Raitport.  The title is

be-din kaf-tav-vav-tav-yod mem-yod-kaf-tav-tav shi'ura

What are the two kaf-tav-tav words???  I wasn't able to find this one in OCLC, 
much less romanize it, and with your help I'd like to do both.

Thank you for your collective wisdom!
Joan