| 1 | arachnoidal | Stammform | basic form |
| 2 | arachnoidale | Nominativ, Maskulinum, Singular, Starke Deklination | nominative case, masculine, singular, strong declension |
| 3 | arachnoidales | Genitiv, Akkusativ, Maskulinum, Singular, Starke Deklination | genitive case, accusative case, masculine, singular, strong declension |
| 4 | arachnoidaler | Dativ, Maskulinum, Singular, Starke Deklination | dative case, masculine, singular, strong declension |
| 5 | arachnoidalere | Nominativ, Akkusativ, Femininum, Singular, Starke Deklination | nominative case, accusative case, feminine, singular, strong declension |
| 6 | arachnoidaleres | Genitiv, Dativ, Femininum, Singular, Starke Deklination | genitive case, dative case, feminine, singular, strong declension |
| 7 | arachnoidalen | Nominativ, Akkusativ, Neutrum, Singular, Starke Deklination | nominative case, accusative case, neuter, singular, strong declension |
| 8 | arachnoidalet | Genitiv, Neutrum, Singular, Starke Deklination | genitive case, neuter, singular, strong declension |
| 9 | arachnoidalete | Dativ, Neutrum, Singular, Starke Deklination | dative case, neuter, singular, strong declension |
| 10 | arachnoidalem | Nominativ, Akkusativ, Plural, Starke Deklination | nominative case, accusative case, plural, strong declension |
| 11 | arachnoidalte | Genitiv, Plural, Starke Deklination | genitive case, plural, strong declension |