§ 24. The order of the verse-members in the hemistich. Every hemistich consists of two feet or measures, each containing an accented syllable. Usually these two feet or measures together contain four verse members, seldom five. In the hemistich of four members, which first falls to be considered, the measures may consist of two members each (2+2), or one may contain one member and the other three (1+3 or 3+1). A measure of one member has a single accented syllable only (–́); a measure of two members has an accented and an unaccented syllable, which may stand either in the order –́× or ×–́; a measure of three members has one accented and two unaccented syllables, one of which has a secondary accent, and the order may be either –́×̀× or –́××̀. Measures of two members may be grouped in three different ways so as to form a hemistich: i. –́×|–́× (descending rhythm); ii. ×–́|×–́ (ascending); iii. ×–́|–́× (ascending-descending)[67]; i. and ii. are symmetrical, iii. is unsymmetrical, but as the number of members in the feet of these three types (2+2 members) is the same, we may call them, as Sievers does, types with equal feet (gleichfüssige Typen), while the others (1+3 members or 3+1 members) may be called types with unequal feet, or measures.
The normal hemistich, then, which consists of four verse-members, will fall, according to the relative position of these measures or feet, into the following five chief types:
a. Types with equal feet (2+2 members)
| 1. | A. | –́×|–́× double descending. |
| 2. | B. | ×–́|×–́ double ascending. |
| 3. | C. | ×–́|–́× ascending-descending. |
b. Types with unequal feet
| 4. | D. | { | –́|–́×̀× –́|–́××̀ | } | (1+3 members). |
| 5. | E. | { | –́×̀×|–́ –́××̀|–́ | } | (3+1 members). |
Theoretically type E might be looked on as a type with equal feet, if divided thus, –́×|×–́, but by far the greatest number of instances of this type show at the beginning of the hemistich one trisyllabic word which forbids such a division of feet, as wéorðmỳndum þā́h, Beow. 8.[68] Types like ××–́– and ×̀×–́–́, which we might expect to find, do not occur in Old English poetry. In addition to these ordinary four-membered hemistichs there are others lengthened by the addition of one syllable, which may be unaccented, or have the secondary accent. These extended forms (erweiterte Formen)[69] may be composed either of 2+3 members or of 3+2 members. These extended hemistichs must be carefully distinguished from the hemistichs which have one or more unaccented syllables before the first accented syllable, in types A, D, and E; such a prefix of one or more syllables is called an anacrusis (Auftakt).[70]
The simple five types of the hemistich admit of variation: i. by extension (as above); ii. by resolution (⏑́× for –́) and shortening of the long accented syllable (⏑́); iii. by strengthening of thesis by means of a secondary accent (Steigerung); iv. by increase in the number of unaccented syllables forming the thesis; also (less frequently) v. by variation in the position of the alliteration, and vi. by the admission of anacruses; the varieties produced by the last-mentioned means are not sub-types but parallel forms to those without anacruses.
In describing and analysing the different combinations which arise out of these means of variation, and especially the peculiar forms of the sub-types, the arrangement and nomenclature of Sievers will be followed.[71]