in the brands of sciences or procedures (acoustics, aerobics, economics, etc.) it signifies a 16c. revival of this traditional customized of employing the neuter plural of adjectives with -ikos (see -ic) to suggest "matters highly relevant to" also because the brands of treatises about all of them. Subject things that obtained their particular brands in English before c.1500, however, have a tendency to remain in single (such as for example arithmetic, reasoning).
A suffix found in forming the brands of particular sciences, systems, etc., as acoustics, math, characteristics, statistics, politics, athletics.
A suffix utilized in developing the names of specific sciences, methods, etc., as acoustics, mathematics, characteristics, data, politics, athletics.