forty-minute

The compound adjective "forty-minute" is a modern English formation following the pattern of number-unit compounds used attributively. Its first element, "forty", originates from the Old English cardinal number for 40, itself derived from a Germanic base meaning "four tens". The second element, "minute", has a journey from Latin minutus ("small"), referring to a small division of time. The compound's logic is transparently descriptive, directly combining a quantity with a standard unit of temporal measurement to create a single adjectival unit modifying a noun, as in "a forty-minute lecture".

Structure: forty (number) + minute (time unit) - forty: From Old English féowertig, meaning "four tens". The modern spelling stabilized in the 16th century. - minute: From Latin minuta (pars), meaning "small (part)", via Old French minut. Refers to a sixtieth part of an hour.