This page explains a brief introduction to the substrate in Saami languages, already present in the proto-Saamic period:Â https://en.wikipedia.org/wiki/Pre-Finno-Ugric_substrate#:~:text=Pre%2DFinno%2DUgric%20substrate%20refers,was%20demonstrated%20by%20Ante%20Aikio.
 I compiled a dictionary of the words of the substrate language. Is it accurate? Iâm not sure, I tried a bit but in the end guessing was involved, even though I studied some of the sound changes from Pre-Saamic (Proto-Uralic) to Proto-Saami.
Some of the words were loaned individually into multiple Saami languages thus they can be traced back to multiple but similar sounding protoforms.
**aðoja > *vuoÎŽĆjÄ game, prey
**ajÉČÉ-ojik~ĂŠk ~ij- > *iĆc-ujĂ«k~-Äk outermost island (in names)
**ara > *-ÄrÄ mountain (in names)
**arĆi~e- > *jĂ«rĆĂ«~vuorĆĂ« open water in lake, middle of lake
**aronensi > *vuorunëssë predatory animal
**ĂŠjni > *ÄjnÉ€ thin, freshly fallen snow
**ĂŠktir > *ÄktĂ«r storm
**Êtri > *jierttɀ large, round mountain
**ÄĂŒĆkĂ€ > *cĂ«ĆkÄ stub, support, Fi. *tĂŒnkĂ€
**ek > *jeakk- isolated mountain (in names)
**e(ta)sma ~eĆt- > *jie(tÄ)smÄ~(ðÄ) ~jievt/ð- young swan
**icxes~-ke > *Ă«ÄkĂ«s sheet ice
**ilÉČi > *Ă«lĆĂ« gum (around teeth)
**ilpes > *ëlpës lynx, Fi. *ilbes
**jeÉi > *jĂ«sĂ«~jĂ«ccĂ« snow in summer
**jitko~jip- ~etka ~itkos > *itkĆ~ip- ~eatkÄ ~Ă«tkĆs shady place
**kapli~ko > *kuoplë overhanging snowdrift
**kĂŠwÉo > *kÄvĆĄĆ she-bear, she-wolf
**keðka > *keaðkÄ stone, rock
**ketka > *keatkÄ wolverine
**kolka > *koalkkee calm weather
**lewMo~ lĂŠĆkis~ lemkas > *lie(v)MĆ~ lieĆkĂ«s -mkÄs mild weather/ warm
**lijÉka~lajÉka > *liĆĄkÄ skin, surface, ? Fi. *liha
**makLi~me- > *muovLë~mëvLë deep snow
**merista > *mĂ«rĂ«stÄ birch forest surrounded by bogs
**mori~mari > *muorë tree, wood
**ÉČĂŠli > *ĆÄlĂ« arctic fox
**norwa~narjo > *noarvÄ~*nuorjĆ seal
**okta > *oaktÄ rain shower
**pĂŠkta > *pÄktÄ rock, steep mountain
**pecka~-xa > *peackÄ mountain pass, strait which dries in summer
**peĆke~pĂŠ- > *pieĆkĂ« wind
**perÉi~pĂŠrÉa > *pĂ«rĆĂ«~ *pÄrĆÄ isolated mountain, steep mountain edge
**poÄe- > *puocĂ«-tÄk be sick (with disease), Fi. *pote-dak
**puktas > *pokcÄs~-tÄs side channel of river
**rĂŠpto > *raaptoo flat stone, stone slab
**rĂŠsjo~-wÉi > *rÄĆĆĆ~ rÄvcĂ« rain in cold weather
**rosni~ruxsni > *rusnɀ fog, mist
**sawki~so > *suovkkɀ dense thicket
**sĂŠl~ saloj > *sÄl- major island in sea (in names); ? **suolĆj, Fi. *salo island
**sĂŠpa-ÉČi~-ka ~sĂŠpilijĆki > *sÄppÄnjĂ«~ sÄppÄkkÄ~ sÄppĂ«liĆkĂ« mouse
**sÊpli-~e- > *sieplë- sink in soft snow
**ĆĄewĆĄim > *sĂ«vsĂ«m hair, feather, Fi. *heĂŒhen
**skeÉ > *skiec(c) watershed (in names)
**skompĂŠ > *(s)kumppÄ wolf
**slĂŠpo > *(s)lÄppĆ sinew thread
**suxÉa~sij/aj > *sucÄ~si- rime (ice when water in fog freeze to object surfaces)
**ÉaĆwi~Éo- > *ÄuoĆvĂ« light
**ÉapÉi > *ÄuopcĂ« ice bridge
**Éari-k~Ć- > *cÄrĂ«k/n/m uppermost lake (in names)
**ÉĂ€Äa > *ÄÄcÄ water
**ÉĂŠĆil > *ÄieĆĂ«l deep
**Éewras > *ÄeavrÄs otter
**Éexi~-ixa > *cĂ«kÄ~-Ă« ~sĂ«kÄ frozen snow (stuck to animalËs foot), (stuck to skis)
**ÉopÉa > *coapcÄ foothold
**Éutis~Éestis > *cottĂ«s~cu- ~ cĂ«stĂ«s snowdrift (hard, in summer)
**tajnta~tijnta > *tintÄ young salmon
**talo~tolmis ~talik > *tuol-Ć~-mĂ«s ~tÄlĂ«k frost on ground
**urti~-a > *ortĂ«~ urtÄ treeline
**wasjo > *vÄÉĆ thicket
**weÉÉČi > *vĂ«ĆĆĂ« brushwood, thicket