köken: 18th century, from English beefsteak with the cluster /fst/ reduced to /ft/ (or less often to /st/). The spelling was highly variable up into the 20th century until bifteck established itself, which is phonetic but adds the “un-French” -k, be it as a pseudo-English form or after the related steak (whose spelling remained unaltered).
köken: From earlier beefsteak, from English beefsteak, with the second part of the compound changed by analogy (through folk etymology) with names of other pieces of meat in Dutch ending in -stuk.
köken: Etymology tree Proto-Indo-European *gʷṓws Proto-Italic *gʷōs Osco-Umbrianbor.? Latin bovem Anglo-Norman beofbor. Middle English bef English beef Old Norse steikbor. Middle English steike English steak English beefsteakbor. Polish befsztyk Borrowed from English beefsteak.
aile: befsztyk po angielsku, befsztyk po tatarsku, befsztyk tatarski