Hocus pocus (magic) derived from the Protoslavic word "kusiti", which is itself derived from Gothic "kausajn" meaning "to try", "to attempt". This may indicate that the wording belongs to the alchemy kitchen and court of Rudolf II, Holy Roman Emperor (1552 – 1612). Also, "hocus" may mean "to cheat" in Latin or a distorted form of the word "hoc", "this". Combination of the two words may give a sense, especially both meanings together "this attempt/experiment" and "cheated attempt/experiment". According to the Oxford English Dictionary the term originates from "hax pax max Deus adimax", a pseudo-Latin phrase used as a magical formula by conjurors.
Referring expression with those names like "Sarah" and "London" which have no lexical meaning of their own. In addition to the singular and plural reference (in many languages grammatically obvious), linguists typically distinguish individual or specific reference, exemplified by each case presented so far, from generic reference, where a singular expression picks out a type of object rather than an individual one, as in The bear is a dangerous animal". Plural expressions can, of course, be interpreted in the same way, as in Bears are dangerous animals". Definite reference to single individuals is usually taken to be the prototypical type of reference.