Salmoneus wrote:What's the reason for assuming direct loaning, rather than loaning from a third family?
'Horn' is a rarely loaned core vocabulary item, so other things being equal, it's better to assume only one loaning event rather than two.
Salmoneus wrote:I've always assumed that, at a deep enough time level, pre-PIE probably came counterclockwise around the Caspian Sea, from an ancestor spoken in NE Levant. An Anatolian route seems to be ruled out, and the Caucasus is just too difficult to go through at a time depth when it will have been already populated.
Oh, now that
is an interesting idea.
So far as I'm aware, though, it's a very improbable one, since I don't think there's any trace - genetic or archeological - of that sort of Iranian influence on the steppe, so the language would have to be transmitted by some very small elite; and Iran was, like the Caucasus, a populous and expansive area, so it's less likely that there would have been a migration from the levant through Iran.
The primary relevant variable is traversability, not population or bare distance. The Caucasus is heavily mountaineous and has "always" been strictly an obstacle that nothing short of a Russian Empire goes over of. On the contrary, linguistic expansions that go right through Persia have been common enough. The first clear case is
(1) Mitanni Aryan, followed by
(2) Proto-Iranian dialects, then
(3) Greek (mainly as a trade/administrative language),
(4) Arabic (alongside Islam),
(5) Persian proper (as a back-expansion to Central Asia, i.e. Tajik), and most recently
(6) Turkic. So, six verifiable expansions over a period of about 3000 years. Even "tunnelling" effects are clearly possible, as in the case of Turkic: little effect on the Persian heartland, extensive new speaker areas established both to the west and to the north(east). Yet we know for certain they did go right through Persia, not by boat across the Caspian Sea, or by trekking over the Caucasus.
These precedents in hand, we already ought to assume that there have been also various earlier linguistic expansions that go through Persia in one direction or the other.
By similar argument, with the Caucasus being a residual zone, also the most likely explanation for genetic links in mtDNA towards Europe actually doesn't involve those genes coming
from the Caucasus, but instead from a common source elsewhere:
1) A spread wave comes in from the steppes, re-populating Europe and the Caucasus with common mtDNA lineages (at this time also Y-DNA lineages);
2) Another spread wave (e.g. PIE) comes in, takes over the steppes first and Europe later, and replaces the old Y-DNA lineages with new, unrelated ones.
Salmoneus wrote:What shred of evidence is there for seeing PIE as the language of Levantine exiles?
None that I know of, and I suggested no such thing. I'm operating with a timescale of a couple millennia — the idea is PIE speakers as fairly distant linguistic descendants of once Levantines or neighbors, kind of like how modern-day speakers of Californian English are distant linguistic descendants of Proto-Germanic speakers from southern Scandinavia. Getting the language from Scandinavia to California was not some kind of a single long-distance wormhole jump, it went through multiple separate expansions several centuries apart (Proto-West Germanic down the North Sea coast; Anglians and Saxons across the canal to Britain; assorted Brits to colonies on the Atlantic coast of North America; homesteading Americans westward across the continent).
Salmoneus wrote:Why invent such a complex procedure to explain two vaguely similar phonemes in one lexical item?
It's not "one" lexical item. If you look into the works of Nostraticists who include Afroasiatic (Bomhard, Dolgopolsky), you can get together a triple-digit-number of PIE-PS lexical comparisons.
PIE *bʰeh₂- ~ PS *b-h-r, *b-h-w, *b-h-q 'to shine'
PIE *bʰeg- ~ PS *b-q-ʕ, *b-q-r- 'to break, split'
PIE *bʰars ~ PS *barr 'grain'
PIE *bʰerH- ~ PS *b-r(-z) 'to bore'
etc.
Probably some percentage is accidental similarity, but I don't think there's much of a chance literally every bit of this data is.
Before getting all Nostratic with things though, we still ought to be looking over possible loaning scenarios. Some cases like 'grain' could work as long-distance Wanderwörter; but connecting most cases, like 'horn' or 'to shine', seems to require a bit closer contacts between the PS lineage and PIE lineage.
Salmoneus wrote:This is a literal violation of Ockham's Razor, supposing the existence of languages lying around the middle east, for which there is no other archeological, genetic or linguistic evidence, just so that they can lend a word or two to a later-arriving Semitic.
I'm not sure what you mean. We have plenty of archeological evidence that the Middle East has been populated for tens of thousands of years, and this implies some sort of languages being spoken in there as well. Most of them going extinct without leaving direct descendants is also only to be expected (cf. Sumerian, Akkadian, Elamite, Hittite, Hurrian, Phoenician…). So is most of them leaving a couple substrate lexical items around regardless.