*liš(š)ān- - tongue (SED I No. 181)

Judging from Afras. data the original form should be *lis-, with suffixed *-ān.

Akkadian

lišānu - tongue, language (CAD L 209, AHw. 556)

Ebla

li-sa-nu - tongue (VE 180)

Ugaritic

lšn - tongue (DUL 506)

Phoenician

lasoun-, lasim- - tongue (DNWSI 584)

The 1st form occurs in Dioscurides as a part of a plant name λασουναφ as an equivalent of Gr. βούγλωσσον. The 2nd one (also a plant name) is attested in Pseudo Apulei Platonici Herbarius as lasimsaph.

Hebrew

lāšōn - tongue, language (HALOT 536)

Samalian

lšn - tongue (DNWSI 584)

Deir Alla

lšn - tongue (DNWSI 584)

Old Aramaic

lšn - tongue (DNWSI 584)

Official Aramaic

lšn - tongue, word (DNWSI 584)

Biblical Aramaic

liššānā - tongue, language, language group, people (HALOT 1732)

Jewish Palestinian Aramaic

lyšn - tongue, language, meaning (DJPA 282)

Christian Palestinian Aramaic

lyšn - tongue, language, speech (DCPA 200)

Samaritan

lšn, lšwn - language (DSA 445)

Jewish Babylonian Aramaic

liššānā - tongue, language, speech, version (DJBA 627)

Syriac

leššānā - tongue, language, spit of land (LSyr. 371, SL 698)

Mandaic

lišana - tongue, language (MD 237)

Maalula

liššōna - Zunge (GNDM 54)

Mlaḥso

lešono - tongue; language (J Mlaḥ. 181)

Turoyo

lišono - Zunge; Sprache (tongue; language) (RW 297)

Arabic

lisān- - tongue (Lane 3010)

Sabaic

ls₁n - tongue (SD 83)

Geez

lǝssān - tongue, language (CDG 318)

-ss- is supported by [Makonnen 199].

Tigre

nəssal - tongue (WTS 325)

The word goes back to *lišān- with metathesis (Kogan 2015: 35, note 69).

Tigrinya

lǝs(s)an - tongue: language (Bass. 20)

Amharic

lǝssan - tongue, language (AED 58)

Mehri

əwšēn - tongue (ML 256)

Jibbali

ɛls̃έn - tongue (JL 165)

Harsusi

lēšen - tongue; language (HL 85)