| 1 | arachnoid | Stammform | basic form |
| 2 | arachnoider | Nominativ, Maskulinum, Singular, Starke Deklination | nominative case, masculine, singular, strong declension |
| 3 | arachnoiden | Genitiv, Akkusativ, Maskulinum, Singular, Starke Deklination | genitive case, accusative case, masculine, singular, strong declension |
| 4 | arachnoidem | Dativ, Maskulinum, Singular, Starke Deklination | dative case, masculine, singular, strong declension |
| 5 | arachnoide | Nominativ, Akkusativ, Femininum, Singular, Starke Deklination | nominative case, accusative case, feminine, singular, strong declension |
| 6 | arachnoider | Genitiv, Dativ, Femininum, Singular, Starke Deklination | genitive case, dative case, feminine, singular, strong declension |
| 7 | arachnoides | Nominativ, Akkusativ, Neutrum, Singular, Starke Deklination | nominative case, accusative case, neuter, singular, strong declension |
| 8 | arachnoiden | Genitiv, Neutrum, Singular, Starke Deklination | genitive case, neuter, singular, strong declension |
| 9 | arachnoidem | Dativ, Neutrum, Singular, Starke Deklination | dative case, neuter, singular, strong declension |
| 10 | arachnoide | Nominativ, Akkusativ, Plural, Starke Deklination | nominative case, accusative case, plural, strong declension |
| 11 | arachnoider | Genitiv, Plural, Starke Deklination | genitive case, plural, strong declension |
| 12 | arachnoiden | Dativ, Plural, Starke Deklination | dative case, plural, strong declension |
| 13 | arachnoide | Nominativ, Maskulinum, Singular, Schwache Deklination | nominative case, masculine, singular, weak declension |
| 14 | arachnoiden | Genitiv, Dativ, Akkusativ, Maskulinum, Singular, Schwache Deklination | genitive case, dative case, accusative case, masculine, singular, weak declension |
| 15 | arachnoide | Nominativ, Akkusativ, Femininum, Singular, Schwache Deklination | nominative case, accusative case, feminine, singular, weak declension |
| 16 | arachnoiden | Genitiv, Dativ, Femininum, Singular, Schwache Deklination | genitive case, dative case, feminine, singular, weak declension |
| 17 | arachnoiden | Nominativ, Genitiv, Dativ, Akkusativ, Plural, Schwache Deklination | nominative case, genitive case, dative case, accusative case, plural, weak declension |
| 18 | arachnoider | Nominativ, Maskulinum, Singular, Gemischte Deklination | nominative case, masculine, singular, mixed declension |
| 19 | arachnoiden | Genitiv, Dativ, Akkusativ, Maskulinum, Singular, Gemischte Deklination | genitive case, dative case, accusative case, masculine, singular, mixed declension |
| 20 | arachnoide | Nominativ, Akkusativ, Femininum, Singular, Gemischte Deklination | nominative case, accusative case, feminine, singular, mixed declension |
| 21 | arachnoiden | Genitiv, Dativ, Femininum, Singular, Gemischte Deklination | genitive case, dative case, feminine, singular, mixed declension |
| 22 | arachnoides | Nominativ, Akkusativ, Neutrum, Singular, Gemischte Deklination | nominative case, accusative case, neuter, singular, mixed declension |
| 23 | arachnoiden | Genitiv, Dativ, Neutrum, Singular, Gemischte Deklination | genitive case, dative case, neuter, singular, mixed declension |
| 24 | arachnoiden | Nominativ, Genitiv, Dativ, Akkusativ, Plural, Gemischte Deklination | nominative case, genitive case, dative case, accusative case, plural, mixed declension |
| 25 | - | Superlativ | |
| 26 | - |