Adûnaic

akhâs

noun. chasm

A noun for “chasm” attested only in the prepositional phrase akhāsada “into chasm” (SD/247) and akhās-ada “chasm-into” (SD/311), the latter example making it clear which element means what.

Adûnaic [SD/247; SD/311] Group: Eldamo. Published by

Sindarin 

chasm

_ n. _chasm, pit. >> Moria

Sindarin [(PE17 Sindarin Corpus) PE17:35] < YAG. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

chasm

(gulf, void, abyss), pl. iai (LR:400, RS:437, Letters:383)

chasm

(gulf, void, abyss), pl. iai (LR:400, RS:437, Letters:383)

Quenya 

cilya

chasm

cilya noun "chasm", allative cilyanna ("k") "in-Chasm" (sc. "into [the] chasm") _(LR:47, 56). _In MR:471, cilya is defined as "cleft, gorge". Spelt kilya in Etym, there defined as "cleft, pass between hills, gorge" (KIL)