LAX
Lax means salmon in Indo-European languages. This word is most probably of Corded Ware Culture or Eastern European Hunter-Gatherer origin and its cognates created a famous Salmon problem in the field of linguistics.
A general word for fish in most Indo-European languages comes from a substrate language. That is why it is predicted that the Indo-European language originated in the Steppes or Forests poor in fish. In my opinion the Indo-European language of the Eastern Hunter-Gatherers already possessed the vocabulary concerning fish species and simply there was no need to bring new names to other Hunter-Gatherer or Farming communities of Western and Southern Europe that already had those in their vocabulary.
The change of "K" to "S" or "S" to "K" is not uncommon because it also appeared in Native American languages, for example a word for a "fish" in Achuar and Aguaruna languages is "namak" but in Abenaki language it is "namas".
Within Germanic group "K", "H" and "S" sounds are not stable in a word for "salmon": Old Norse "laks", Old Saxon "lahs", Middle Low German "las".
Tocharian B "laksi" and Tocharian A "läks" simply meant "fish" and in Irish "liús" means "pike" not "salmon". Most probably the original meaning of a word for "lax" was "the shiny one" from a word for "bright" or "light". In Old Norse "lýsa" meant "to light" and in Gaulish "leux" meant "light".
LAKS
Middle English: lax
Scots: lax
English: lax
Old Norse: lax
Icelandic: lax
Gutnish: lax
Old Swedish: lax
Swedish: lax
Old Danish: lax
Norn: laks
Norwegian: laks
Danish: laks
Faroese: laksur
Middle Dutch: lacks, lack
Tocharian B: laksi ("fish")
LAS-
---> Hungarian: lazac
---> Ume Sami: luassa
Middle Low German: las
Middle Dutch: lasche
Dutch: las
Ossetian: лӕсӕг (læsæg)
Lithuanian: lãšis, lašiša
Belarusian: ласо́сь (lasósʹ)
Old Prussian: lalasso (lasasso?)
LOS-
Russian: лосо́сь (losósʹ), ло́сось (lósosʹ)
Rusyn: ло́сос (lósos)
Ukrainian: лосо́сь (losósʹ)
Macedonian: лосос (losos)
Serbo-Croatian: ло̏сос, lȍsos
Slovene: lọ̑sos
Czech: losos
Polish: łosoś
Slovak: losos
Lower Sorbian: łosos
Upper Sorbian: łosos
LOH-
---> Finnish: lohikala, lohi (losi?, loki?)
---> Estonian: lõhe
---> Ingrian: lohi
---> Veps: lohi
LOES
---> Southern Sami: loese
LUOS-
---> Inari Sami: luosâ
---> Lule Sami: luossa
---> Pite Sami: luossa
---> Northern Sami: luossa
---> Skolt Sami: luõss
Slovincian: lʉ̀ɵsɵs
LUS-
---> Kildin Sami: лӯсс (lūss)
Irish: liús ("pike", "esox")
LAH-
Old Saxon: lahs
Old High German: lahs
Middle High German: lahs
Middle Dutch: lachs
German: Lachs
German Low German: Lachs
Saterland Frisian: Lachs
LE-
Ossetian: лӕсӕг (læsæg)
Albanian: leshterik ("eel-grass")
Old English: leax
Tocharian A: läks (leks) ("fish")
Article published on the 30th of October 2018. Updated on 7th of October 2021.