Final answer:
The student query relates to third declension neuter adjective endings in Latin, which are determined by case, number, and gender. The question appears to have an issue as 'N adjectives' isn't standard terminology. If referring to neuter third declension adjectives, the endings would follow those typical of neuter nouns in Latin.
Step-by-step explanation:
The student is asking about the endings for third declension neuter adjectives in Latin. These adjectives conform to a set of endings based on case, number, and gender. Adjectives in Latin agree with the nouns they modify in these three categories. Unfortunately, the question as it stands seems to be miscategorized or potentially misphrased, as it refers to 'N adjectives,' which does not specify a standard grammatical category. If by 'N' the student means 'neuter,' then the typical third declension neuter endings for adjectives would be similar to those of nouns, including -e for nominative singular, -ia for nominative and accusative plural, and other endings that correspond with the different cases.
When adding suffixes to form new words in English, such as '-ess' to create feminine forms of nouns, it is key to recognize any phonological or orthographic changes that might occur. For example, adding '-ess' to 'sorcer' to form 'sorceress,' or analyzing the combination of stem nouns and suffixes, like 'foreign' with 'ness' to form 'foreignness.'