WHEN adv.
hat time; at, during, or after the time that; at or just after, the moment that; -- used relatively. Kings may Take their advantage when and how they list. Daniel. Book lore ne'er served, when trial came, Nor gifts, when faith was dead. J. H. Newman.
WHENCE adv.
which place, source, material, cause, etc.; the place, source, etc., from which; -- used relatively. Grateful to acknowledge whence his good Descends. Milton.
WHEREOF adv.
Of which; of whom; formerly, also, with which; -- used relatively. I do not find the certain numbers whereof their armies did consist. Sir J. Davies. Let it work like Borgias' wine, Whereof his sire, the pope, was poisoned. Marlowe. Edward's seven sons, whereof thyself art one. Shak.
WHICH pron. 2 definitions
A relative pronoun, used esp. in referring to an antecedent noun or clause, but sometimes with reference to what is specified or implied in a sentence, or to a following noun or clause (generally involving a reference, however, to something which has preceded). It is used in all numbers and genders, and was formerly us…
WHO pron.
Originally, an interrogative pronoun, later, a relative pronoun also; -- used always substantively, and either as singular or plural. See the Note under What, pron., 1. As interrogative pronouns, who and whom ask the question: What or which person or persons Who and whom, as relative pronouns (in the sense of that), ar…