hyphen definition by Webster's New World
Origin: Late Latin ; from Classical Greek hyphen (for hyph' hen), a hyphen, literally , under one, together, in one ; from hypo-, under plush hen, neuter accusative of heis, one: for Indo-European base see same
hyphen definition by American Heritage Dictionary
Origin: Late Latin, from Greek huphen, a sign indicating a compound or two words which are to be read as one, from huph' hen, in one : hupo, under; see hypo- + hen, neuter of heis, one; see sem-1 in Indo-European roots.
hyphen - Cultural Definition
A punctuation mark (-) used in some compound words, such as self-motivation, seventy-five, and mother-in-law. A hyphen is also used to divide a word at the end of a line of type. Hyphens may appear only between syllables. Thus com-pound is properly hyphenated, but compo-und is not.