In
Indo-European linguistics, the term 'Indo-Hittite' (also 'Indo-Anatolian') refers to the hypothesis that the
Anatolian languages may have split off the
Proto-Indo-European language considerably earlier than the separation of the remaining
Indo-European languages. The term is somewhat imprecise, as the prefix ''Indo-'' does not refer to the
Indo-Aryan branch in particular, but is iconic for ''Indo-European'', and the ''-Hittite'' part refers to the Anatolian language family as a whole.
It is generally accepted that the Anatolian branch was separated earlier, but while mainstream Indo-European linguistics holds that this may have been a matter of a couple of centuries, maybe roughly
4000 BC in the
Kurgan framework, proponents of the Indo-Hittite hypothesis claim the separation may have preceded the spread of the remaining branches by several millennia, possibly as early as
7000 BC. In this context, the
proto-language before the split of Anatolian would be called ''Proto-Indo-Hittite'', and the proto-language of the remaining branches, before the next split, presumably of
Tocharian, would be called ''
Proto-Indo-European'' (PIE). This is a matter of terminology, though, as the hypothesis does not dispute the ultimate genetic relation of Anatolian with Indo-European, it just means to emphasize the assumed magnitude of temporal separation.
A crucial question is, thus, whether the Anatolian branch split off before the beginning of the
Bronze Age, or even the
Chalcolithic. A Bronze Age society is usually reconstructed from PIE vocabulary, but it is unclear whether this necessarily holds for inherited vocabulary in Anatolian. The Bronze Age begins roughly
3300 BC in the
Caucasus, precisely the area that separates the historical Anatolian speakers from the remaining branches; it is therefore possible that the Proto-Anatolians themselves were involved with the earliest development of Bronze metallurgy. In any case, while evidence that Anatolian shares common terminology of metallurgy with other branches would speak against Indo-Hittite, the opposite case does not imply evidence in favour of Indo-Hittite, since even a 'moderate Indo-Hittite' split around 4000 BC would clearly predate the Bronze Age.
See also
★
Anatolian hypothesis
References
★ Schmidt, Karl Horst, ''Contributions from New Data to the Reconstruction of the Proto-Language''. In: Edgar Polomé and Werner Winter, eds. ''Reconstructing Languages and Cultures''. Berlin/New York: Mouton de Gruyter (1992), 35–62.