9. The intimate connection between the juridical and religious ideas of the
Romans has left numerous traces even in their language. One of the most
curious is the double meaning of the term _supplicium_, which stands at the
same time for a supplication addressed to the gods and a punishment {220}
demanded by custom, and later by law. In regard to the development of this
twofold meaning, see the recent note by Richard Heinze, _Archiv für
lateinische Lexicographie_, XV, pp. 90 ff. Sematology is often synonymous
with the study of customs.