Old English (ca. 4501150CE) used a relatively rich system of inflection for adjectives. An adjective agreed with the noun it modified in case, gender, number, and also reflected the strength of the inflection (strong vs. weak). The same set of endings was used for comparatives and superlatives, which were themselves nounlike forms.
The distinction is parallel to that found in Old English nouns. A strong adjective appears when the noun lacks an article or any other determiner that would otherwise supply case information. A weak adjective follows a definite article (se, so, t), a demonstrative (es, re), a possessive pronoun, or a numeral.
Strong: mre cyning a famous king.
Weak: se mre cyning the famous king.
Old English retained the four Germanic cases: nominative, accusative, genitive, dative. Each case has a distinct set of endings for masculine, feminine, neuter, and plural. Below are the most common patterns for the strong declension of a regular -e adjective (e.g., de good). The weak pattern mirrors that of weak nouns.
| Case | Masculine | Feminine | Neuter | Plural |
|---|---|---|---|---|
| Nominative | gd | gde | gd | gde |
| Accusative | gdne | gde | gd | gde |
| Genitive | gdes | gde | gdes | gra |
| Dative | gdum | gde | gdum | gdum |
| Case | All Genders (Sing.) | Plural |
|---|---|---|
| Nominative | gda | gde |
| Accusative | gda | gde |
| Genitive | gdan | gra |
| Dative | gdan | gdum |
Comparatives and superlatives are formed with suffixes -ra (comparative) and -ost (superlative). The resulting forms are treated as adjectives of the strong type and follow the same declension patterns as regular adjectives.
| Case | Masculine | Feminine | Neuter | Plural |
|---|---|---|---|---|
| Nominative | gdra | gdre | gdru | gdre |
| Accusative | gdran | gdre | gdru | gdre |
| Genitive | gdras | gdre | gdras | gdra |
| Dative | gdrum | gdre | gdrum | gdrum |
| Case | Masculine | Feminine | Neuter | Plural |
|---|---|---|---|---|
| Nominative | gdost | gdost | gdest | gdoste |
| Accusative | gmost | gdoste | gdest | gdoste |
| Genitive | gdostes | gdostre | gdostes | gdostra |
| Dative | gdostum | gdostre | gdostum | gdostum |
Some frequently used adjectives have irregular comparatives and superlatives, often inherited from ProtoGermanic.
Se mra ealdorman ws gda on his weorulde, ac s gdres cyninges ah e he one ftergenga geafode, ws gdost of eallum m cyningum. (The famous ealdorman was good in his world, but despite the better king, the one who allowed his successor, he was the best of all those kings.)
Understanding the inflectional patterns of Old English adjectives opens the door to authentic reading and translation of early medieval texts. With practice, the strong/weak distinction and the regular comparative/superlative endings become second nature.
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