Origins
The English preposition 'among' is, at its etymological core, a word about mixing and mingling. Unlike prepositions built from spatial particles like 'in,' 'on,' or 'under,' 'among' derives from a noun meaning 'crowd' or 'assembly,' giving it a social and collective character that persists in its modern usage.
The word descends from Old English 'on gemang,' a prepositional phrase meaning 'in a crowd' or 'in a mingling.' The key element 'gemang' (also 'gemonge') was a noun meaning 'crowd, assembly, mixture, intercourse,' derived from the verb 'mengan' (to mix, to mingle). The prefix 'ge-' was a common Old English collectivizing prefix (surviving in the archaic 'y-' of 'yclept'). Over time, the phrase 'on gemang' was contracted: the 'on' reduced to 'a-,' the 'ge-' prefix was lost, and the result was Middle English 'among.'
The Proto-Germanic verb behind 'mengan' was *mangjan (to mix, to knead), which produced an extensive family of words across the Germanic languages. German 'mengen' (to mix, to mingle), Dutch 'mengen' (to mix), and Old Norse 'menga' (to mix) are direct cognates. In English, the verb survived as 'mingle,' which underwent a frequentative extension (the '-le' suffix indicating repeated action, as in 'sparkle' from 'spark').
Old English Period
The same root produced several other English words with surprising connections. 'Mongrel' — a mixed-breed animal — comes from Middle English 'mong' (mixture) plus the diminutive suffix '-rel' (as in 'scoundrel,' 'wastrel'): a mongrel is literally 'a little mixture.' The suffix '-monger,' as in 'fishmonger,' 'ironmonger,' 'warmonger,' and 'scandalmonger,' derives from Old English 'mangere' (dealer, trader), from 'mangian' (to trade) — the original idea being that a dealer is one who mingles in commerce, who mixes with buyers and sellers in the marketplace.
The variant form 'amongst' appeared in Middle English, with the parasitic '-t' added by analogy with other words that had acquired this excrescent consonant: 'against' (from 'again'), 'whilst' (from 'while'), 'amidst' (from 'amid'). There is no semantic difference between 'among' and 'amongst'; the choice is largely regional and stylistic. 'Amongst' is more common in British English and carries a slightly more formal register; 'among' predominates in American English.
The prescriptive distinction between 'among' (for three or more) and 'between' (for exactly two) is frequently cited in usage guides but has little historical basis. Both words have been used with both two and more than two entities since Old English. The distinction is better understood as a tendency rather than a rule: 'among' emphasizes membership in a group, while 'between' emphasizes individual relationships.
Modern Usage
In modern English, 'among' has several distinct uses. It can indicate physical position within a group ('standing among the trees'), membership in a class ('among the finest wines'), distribution within a group ('divided among the heirs'), and mutual relationship ('they quarreled among themselves'). This last use — the reciprocal sense — connects directly to the word's etymological meaning of mingling and mixing.
The word also appears in several set phrases: 'among other things,' 'among friends,' 'honor among thieves,' and 'a wolf among sheep.' The biblical parable of separating 'the sheep from among the goats' uses the word in its oldest sense of physical mingling.
Phonologically, the evolution from Old English 'on gemang' /on ɡeˈmɑŋɡ/ to modern 'among' /əˈmʌŋ/ involved the reduction of 'on' to an unstressed 'a-,' the loss of the 'ge-' prefix, the shift of the vowel from /ɑ/ to /ʌ/ (the same change that affected 'sun,' 'come,' and 'love'), and the simplification of the final cluster from /ŋɡ/ to /ŋ/. The stress shifted from the noun element to the second syllable of the resulting compound, following the pattern typical of prepositions with the 'a-' prefix ('about,' 'above,' 'around,' 'away').
Semantic Evolution
The word's journey from a concrete noun meaning 'crowd' to an abstract preposition meaning 'in the midst of' illustrates a process called grammaticalization — the gradual transformation of content words into function words. The noun 'gemang' lost its independence and its concrete reference, becoming a grammatical particle that marks a relationship rather than naming a thing. This process is one of the primary engines of grammatical change in all languages, and 'among' is one of its clearest examples in English.