seven-plus

The compound "seven-plus" is a modern British institutional term formed transparently from its two constituent English words. "Seven" originates from the Proto-Indo-European root septḿ̥, a stable numeral that gave rise to its equivalents in nearly all Indo-European languages, including Latin septem. "Plus" derives from the Latin plūs meaning "more", related to the comparative form plūs from the root pleh₁- ("to fill"). In the specific context of the UK education system, the term's logic is literal yet specialized: it designates children who are "seven years old or more", specifically those old enough to take a selective entrance examination. This compound thus applies the ancient, fundamental concepts of a specific number and a comparative degree to create a precise demographic and procedural label within a particular social framework.

Structure: seven (number) + plus (addition/surpassing) - seven: From Old English seofon, of Germanic origin; related to Dutch zeven and German sieben, from an Indo-European root shared by Latin septem and Greek hepta. Functions as the cardinal number 7. - plus: From Latin plus meaning "more". Adopted into English via Old French plus. Functions as a preposition or adjective indicating addition or a surplus.