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Lat. A goal, bound, or turning-point. In old English law, the term was used to denote a bouud or boundary line of land; a landmark; a material object, as a tree or a pillar, marking the position or be- ginning of a boundary line.

A common prefix to words. Hence:

[Greek] A preposition used as a prefix meaning (1) change or exchange; (2) after, next, beyond; (3) in chemistry, a derived or generally an isomeric compound, particularly a benzene derivative in which two alternate atoms (i. e., two neither adjacent nor opposite) of hydrogen in the benzene ring are replaced.

in comb. (before vowel met-, before aspirate meth-) =Greek meta with, after; sometimes w. sense \'change\'.

n. [Latin] A mark; a goal. [Greek] A prefix to words of Greek origin, denoting posteriority in time or place, mixture or union, and increase or augment.