Heidelberg: Carl Winter Universitätsverlag, 1960. — XIV, 190 p. — (Indogermanische Bibliothek. 3. Reihe, Untersuchungen).
Preface. Abbreviations.
Introduction. The formation of the decads in Indo-European.
The decade in Greek, Latin, Celtic and Armenian.
The decads in Germanic.
The decads in Tokharian, Aryan and Balto-Slavic.
“Ten” and the formation of the ordinals “3rd-10th” in Indo-European.
The nature of the Indo-European decad-formations.
The Indo-European numeral system compared with that of the Finno-Ugric and Semitic languages.
Appendix: Rosenfeld’s theory of the formation of Germanic decads; The Latin morph
-gint-; IE *
dekm̥t- in Celtic ? ; Is “9” IE *newn̥ or *newm̥ ? IE “eighth”.
Index.