The -ko ending is clearly Slovak or Ukrainian (although some South Slavic names also have this ending). If we have to chose between Polish and Ukrainian, a Polish origin seems more likely, due to the fact that the surname derives from the (long ago very popular) Christian name Florian which comes from Latin. Latin influences were stronger among Poles than Ukrainians, so that fact argues for Polish origin. J. Piszczor "George A. Miziuk" <[email protected]> wrote: >Perhaps it is neither Polish nor Czech. Many Ukrainian surnames end in -KO and it may be that the >name is actually Ukrainian >in origin.