Positive is the form of an adjective

Adjective

In grammar, an adjective is a 'describing' word; the main syntactic role of which is to qualify a noun or noun phrase, giving more information about the object signified....

 or adverb

Adverb

An adverb is a part of speech that modifies verbs or any part of speech other than a noun . Adverbs can modify verbs, adjectives , clauses, sentences, and other adverbs....

 on which comparative

Comparative

In grammar, the comparative is the form of an adjective or adverb which denotes the degree or grade by which a person, thing, or other entity has a property or quality greater or less in extent than that of another, and is used in this context with a subordinating conjunction, such as than,...

 and superlative

Superlative

In grammar, the superlative is the form of an adjective that indicates that the person or thing modified has the quality of the adjective to a degree greater than that of anything it is being compared to in a given context. English superlatives are typically formed with the suffix -est In...

 are formed, in English, with the suffixes -ier, -lier, -iest, or -liest, or the forms more/less for polysyllabic adjectives/adverbs. In English, good is a positive adjectival form corresponding to the comparative better and the superlative best. In French, bon corresponds to meilleur and le meilleur, while in Spanish, bueno corresponds to mejor and el mejor. The related forms

Interlingua and eligibility of international words

Words can be included in Interlingua in either of two ways: through regular derivation using roots and affixes or by establishing their eligibility as international words...

 in Interlingua

Interlingua

Interlingua is an international auxiliary language , developed between 1937 and 1951 by the International Auxiliary Language Association...

are bon, melior, and le melior.