A hyphen is part of the common spelling: daylight-saving time.
Many writers never divide a word, others do it frequently, with or without the hyphen.
The purser said that the dragon's name was Mrs. Scrivener-Yapling, with a hyphen.
Some compound words appeared both with and without a hyphen.
Queer sort of wheeze to say 'hyphen' in a chap's name as if it were a word, when it wasn't at all.
Afterwards he asked people to worship the Life-Force; as if one could worship a hyphen.
The hyphen is used between the component parts of some compound words.
They cling to the hyphen in such words as to-day and to-night; it begins to disappear in America.
In these words the pronunciation is more clearly marked by inserting the hyphen.
In any other sense the hyphen is only an attempt to connect two qualities which refuse to be connected.
1620s, from Late Latin hyphen, from Greek hyphen "mark joining two syllables or words," probably indicating how they were to be sung, noun use of an adverb meaning "together, in one," literally "under one," from hypo "under" (see sub-) + hen, neuter of heis "one."
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.