köken: From Middle High German kis. Either the basic form of, or a backformation from Old High German kisil, from Proto-West Germanic *kesul, whence Kiesel. See there for more.
köken: Inherited from Middle French blé, from Old French blet, from Early Medieval Latin blādum, from Frankish *blād (“field produce”), from Proto-Germanic *blēduz (“flower, leaf”), from Proto-Indo-European *bʰleh₃- (“to bloom, blossom”). Cognate with Old English blǣd (“produce, blossom, fruit”), Old High German blāt (“blossoming, labour pains”).
aile: blé noir, blé d'Inde, caille des blés, fauché comme les blés, rat de blé
köken: From Swedish fyrk, a coin and monetary unit used in Sweden from 15th to 17th century, originally equivalent to four (in Swedish fyra) pennings. In the 19th century the term fyrk was used of a unit for counting taxes and voting rights in the municipal election.
Compound of stål (“steel”) + -ar (“plural suffix”), via the cant Older Månsing, possibly as peddlers from Västergötland is said to have used steel objects as means of payment. First attested in 1893.