The Jedic languages lost the construct form, collective number, gender, and case. Therefore, nouns and adjectives in these languages only have number (singular, plural, and dual) and are divided into eight types.

The first type, which is followed by the old nouns in e and i. The ancient equative case of Jedus produces comparative and/or modal adjectives and adverbs. The former follow this paradigm. These make the singular and plural in -ø and the dual in -er. For example, eguθ ("animal"), eguθ pl., eχθer dl.; tytreted ("childlike"), tytreted, tytreteter.

The second type, which is followed by the old nouns in pʰ, bʰ and old collective. These make the singular in -g, the plural in -bug and the dual in -gr̩. Stems ending in -ag, -eg and -ou take the endings -au, -eu and -ou, respectively, in the singular. For example, eχθeu ("herd"), eχθebug pl., eχθegr̩ dl.

The third type, which is followed by the old nouns in u and eu̯. These make the singular in -g, the plural in -ed and the dual in -er. For example, dosg ("rice plant"), dosed pl., doser dl.

The third type, which is followed by the old nouns in tʃ, t, d, tʰ, kʰ, r, s, ł,  p and n. These make the singular in -to (but it is -ro and -so in verbs ending in r and s), the plural in -θo and the dual in -tor. For example, eteto ("house"), eteθo pl., etetor dl.; For example, dosdro ("mud"), dosdθo pl., dosdtor dl.

The fifth type, which is followed by the old nouns in ae and ai̯. These make the singular and plural in -e and the dual in -er. For example, re ("tooth"), re pl., rer dl.; dro ("ant"), dre pl., drer dl.

The sixth type, which is followed by the old nouns in a and au̯. These make the singular and plural in -o and the dual in -or. For example, brigo ("sea"), brigo pl., brigor dl.

The seventh type, which is followed by the old nouns in o. These make the singular in -o and the the plural in -y. For example, ero ("bird"), eru pl., ergur dl.

The eighth type, followed by the old nouns in ou̯. These form the singular in -e, the plural in -u, and the dual in -ag. For example, serieefɘ ("hake"), serieefa pl., serieefag dl.