English Possessive - History

History

The 's morpheme originated in Old English as an inflexional suffix marking genitive case. In the modern language, it can often be attached to the end of an entire phrase (as in "The King of Spain's wife" or "The man whom you met yesterday's bicycle"). As a result, it is normally viewed by linguists as a clitic, i.e. a morpheme that cannot be a word by itself but is grammatically independent of the word it is attached to, as in forms such as 'm (as in I'm) or n't (as in don't).

A similar form of the morpheme existed in the Germanic ancestor of English, and exists in some modern Germanic languages.

In Old English, -es was the ending of the genitive singular of most strong declension nouns and the masculine and neuter genitive singular of strong adjectives. The ending -e was used for strong nouns with Germanic ō-stems, which constituted most of the feminine strong nouns, and for the feminine genitive singular form of strong adjectives.

In Middle English the -es ending was generalised to the genitive of all strong declension nouns. By the sixteenth century, the remaining strong declension endings were generalised to all nouns. The spelling -es remained, but in many words the letter -e- no longer represented a sound. In those words, printers often copied the French practice of substituting an apostrophe for the letter e. In later use, -'s was used for all nouns where the /s/ sound was used for the possessive form, and the -e- was no longer omitted. Confusingly, the -'s form was also used for plural noun forms. These were derived from the strong declension -as ending in Old English. In Middle English, the spelling was changed to -es, reflecting a change in pronunciation, and extended to all cases of the plural, including the genitive. Later conventions removed the apostrophe from subjective and objective case forms and added it after the -s in possessive case forms. See Apostrophe: Historical development

In the Early Modern English of 1580 to 1620 it was sometimes spelled as "his" as a folk etymology, e.g. "St. James his park"; see his genitive.

Another remant of the Old English genitive is the adverbial genitive, where the ending -s (without apostrophe) forms adverbs of time: nowadays, closed Sundays. There is a literary periphrastic form using of, as in of a summer day. There are also forms in -ce, from genitives of number and place: once, twice, thrice; whence, hence, thence.

There is also the "genitive of measure": forms such as "a five-mile journey" and "a ten-foot pole" use what is actually a remnant of the Old English genitive plural which, ending in /a/, had neither the final /s/ nor underwent the foot/feet vowel mutation of the nominative plural. In essence, the underlying forms are "a five of miles (O.E. gen. pl. mīla) journey" and "a ten of feet (O.E. gen. pl. fōta) pole".