Wurdahuzdą: Proto-Germanic dictionary — *flatazScott K. ShayWardja Presshttps://protogermanic.org/pgmc_flataz
Single-entry extract from the dictionary. Cross-references to other entries point to their identifiers in the full dictionary.
Indogermanisches etymologisches WörterbuchJuliusPokornyFrancke VerlagI1959Kontrowersyjne ślady zmiany pie. p > pgerm. f utrwalone w polsko-angielskich wyrazach pokrewnych: zestawienia sporne i wczesne zapożyczenia [Controversial traces of the change PIE p > PGmc f in Polish-English cognates: disputable etymologies and early loanwordsMikołajRychłoJęzyk Polski973114–1282017The American heritage dictionary of Indo-European rootsCalvertWatkinsBostonHoughton Mifflin Harcourt2011**plod-sk-o
adja-stemflatUncertain. Rychło 2017 proposes a derivation from Proto-Indo-European **plod-sk-o, (presumably based on Pokorny’s marginal *plā̆d- (‘broad and flat, spread out’)) for this word and potential cognate in Slavic (e.g. Polish płaski (‘flat’)). This works for Proto-Germanic but poses issues for Balto-Slavic. Kroonen’s (2013) derivation from *pleth₂- (‘to spread, extend; flat’) requires a pre-Germanic geminate, **plottos < *ploth₂-nó-s (via Kluge's law) that is later degeminated (a non-geminate derivation from this root would provide the wrong final consonant, -þ). However, the morphological gymnastics of geminating then degeminating makes this derivation somewhat suspect. Watkins 2011, based on Pokorny 1959, posits the simplest derivation from PIE root *plad- as a simple “variant form” of *pleth₂-.The issue here is the lack of cognates with a similar voiced dental.