Xaver rhymes with:
althaver, aver, baver, braver, caver, craver, disfavor, engraver, faivre, faver, favor, favre, flavor, gaver, graver, klaver, lafavre, laver, lefever, lefevre, maxsaver, o'haver, ohaver, paver, quaver, raver, saver, savir, savor, savr, shaver, staver, traver, waiver, waver