Pre-Greek substrate

For instance, terms like τολύπη (tolúpē; 'clew, ball of wool ready for spinning') show typical pre-Greek features while being related to Anatolian words (in this case Luwian and Hittite taluppa/i- 'lump, clod') with no other attested Indo-European cognate, suggesting that they were borrowed from the same probably non-Indo-European source.

Some scholars have thus proposed that at least part of the pre-Greek substrate was brought to Greece by pre-Indo-European settlers from Asia Minor, and that we should distinguish between different layers of loanwords coming successively or concurrently from different families of languages.

[18][19][20][21][22][23] This has been criticized by John E. Coleman, who argues that this estimate is based on stratigraphic discontinuities at Lerna that other archaeological excavations in Greece suggested were the product of chronological gaps or separate deposit-sequencing instead of cultural changes.

Furthermore, while the existence of word-initial approximants /w/ and /j/ can be safely inferred from common motifs in inherited words (e.g. the ἰα‑ from *ja- in ἴαμβος, Ἰάσων) or even retained in early and dialectal forms (e.g. *wa- in the cases of ἄναξ-ϝάναξ, Ὀαξός-ϝαξός, ὑάκινθος-ϝάκινθος), word-initial aspiration probably did not exist, with /h/ considered by Beekes a non-native phoneme in pre-Greek.

Some fringe theories ranging from the mild (e.g., Egyptian) to the extreme (e.g., Proto-Turkic) have been proposed but have not been adopted by the broader academic community.

Brown, after listing a number of words of pre-Greek origin from Crete, suggests a relation between Minoan, Eteocretan, Lemnian (Pelasgian), and Tyrsenian, inventing the name "Aegeo-Asianic" for the proposed language family.

[40] However, many Minoan loanwords found in Mycenaean Greek (e.g., words for architecture, metals and metallurgy, music, use of domestic species, social institutions, weapons, weaving) may be the result of socio-cultural and economic interactions between the Minoans and Mycenaeans during the Bronze Age, and may therefore be part of a linguistic adstrate in Greek rather than a substrate.

[43] If Etruscan was spoken in Greece, it must have been effectively a language isolate, with no significant relationship to or interaction with speakers of pre-Greek or ancient Greek, since, in the words of Carlo De Simone, there are no Etruscan words that can be "etymologically traced back to a single, common ancestral form with a Greek equivalent".