Ultramontaine, probably because a specific party designation, is always printed solid.
19. Over and under do not ordinarily call for a hyphen; overemphasize, underfed, but over-careful, over-spiritualistic.
20. Combinations having self and by as the first element of the compound call for a hyphen; self-evident, self-respecting, by-law, by-product, but selfhood, selfish, and selfsame.
21. Combinations of fold are printed as one word if the number contains only one syllable but as two if it contains more than one;
| twofold | fifteen fold | |
| tenfold | a hundred fold |
22. Adjectives formed by a noun preceding like do not take a hyphen if the noun is a monosyllable, except when ending in l or a proper noun; if the noun contains more than one syllable a hyphen should be used; childlike, warlike, catlike, bell-like, Napoleon-like, but (by exception) Christlike.
23. Vice, elect, ex, general, and lieutenant as parts of titles are connected with the chief noun by a hyphen; vice-consul, ex-president, governor-elect, postmaster-general, lieutenant-colonel.
24. Today, tonight, and tomorrow are printed without a hyphen.
25. In fractional numbers spelled out connect the numerator and denominator by a hyphen. “The day is three-quarters gone,” four and five-eighths, thirty-hundredths, ninety-two thousandths.
Do not use the hyphen in an instance as “One half the business is owned by Mr. Jones, one quarter by Mr. Smith, and one eighth each by Mr. Browne and Mr. Robinson.”