Latin gerundives in English
A gerundive may be defined as a verbal adjective of obligation, i.e., an adjective formed from a verb to express the thought that the action denoted by the verb is desirable or obligatory. Verbs in English do not have a gerundival form but in Latin and ancient Greek they do: in Latin gerundives are formed by adding -andus, -endus, or –iendus to the verbal stem, in Greek by adding –τεος (–teos).
However, some words which are Latin gerundives have become part of the English language: Among them are:
addendum (plural addenda), a gerundive from the verb addĕre ‘to add’, meaning ‘(something) to be added’. The word may be used of the supplement or appendix of a book, journal, report, or the like.
agendum (plural agenda), a gerundive from the verb agĕre ‘to do, act, perform’, meaning ‘(something) to be done’..The Latin plural form agenda is the commonly used form in English, where it is treated as a singular (e.g., ‘This agenda is even longer than the one for last week’s meeting.’) The word may be applied, e.g., to a list of issues which need to be discussed by a committee or to a schedule of actions which must be carried out as part of a programme.
corrigendum (plural corrigenda), a gerundive from the verb corrigĕre, ‘to make straight, improve, correct’, meaning ‘(something) to be corrected’ The word (usually in the plural) is typically used to refer to the misprints in a book or other printed material, misprints of which the reader is sometimes, though nowadays rarely, informed by means of a slip of paper inserted into the book.
memorandum (plural memoranda or memorandums), a gerundive from the verb memorāre, ‘to mention, remind’, meaning ‘(something) worthy of being mentioned, (something) of which to be reminded’. The word, which in informal contexts is often abbreviated to memo (plural memos), is used to refer to a written record, e.g., of the main points in a discussion; to a note or list of items or points to be remembered; or, in the context of diplomacy, to an informal note summarising a government’s position on a particular issue.
pudendum (plural pudenda), a gerundive from the verb pudēre ‘to be ashamed’, meaning ‘(something) about which one should feel shame’. The word, typically in the plural, is used exclusively to refer to the human external genital organs, particularly to the female genital organs. (Incidentally, this use of pudenda does not presuppose that we should be ashamed of our genital organs but rather that we should feel shame or embarrassment if they were to be publicly visible and hence that they should be kept covered in public.)
Rather differently, the girl’s name Amanda is a gerundive from the verb amare (‘to love’) and means ‘deserving to be or worthy of being loved’.
For the most famous use of a gerundive in Roman history - in the sentence Delenda est Carthago (‘Carthage must be destroyed’) - see Cato, under Marcus Porcius Cato Censorius.
