pommer means an alto, tenor, or bass instrument of the shawm family. Lexicurio rates it Sui generis — a strength score of 88 out of 100.
noun
- An alto, tenor, or bass instrument of the shawm family.“The treble pommer was the equivalent of our hautboy; the bass pommer corresponded to our bassoon. Midway between these lay the alto and tenor pommers, of which the former (the alto), was doubtless the forerunner of the cor anglais.”