-ए

Etymology 1
Merging from a few sources:
 * , from, from , from.
 * , from, from , from.
 * , from, from , from.
 * , from, from , from.

Etymology 2
All forms are ultimately from :
 * The oblique singular probably, from , from , the pronominal locative singular ending (cf. , , etc). The nasality was lost due to interference from the alternative ending, from , ultimately from  + , the locative singular of . That this ending is continues the pronominal locative singular ending is not beyond doubt, because normally the oblique case is based on the genitive. Alternatively, this ending is the result of a crossing of the above two sources,  (from  ), and  (from ).
 * The vocative singular, from , from , the vocative singular.
 * The direct plural, from , from , the nominative plural.
 * The oblique plural Sanskrit gave, which developed into . For adjectives, the ending was affected by haplological shortening early on resulting in , later  and finally . The oblique vocative had similar haplology. Compare.

Suffix

 * 1)  strictly for adjectives
 * for "black horses" in the oblique plural; note the different conjugations for the adjective and noun
 * 1)  strictly for adjectives
 * 1)  strictly for adjectives
 * for "black horses" in the oblique plural; note the different conjugations for the adjective and noun
 * 1)  strictly for adjectives

Etymology
, from or, the locative singular of.