The Etymology of Extend
Extend belongs to one of the largest word families in English, all rooted in the Latin verb tendere ('to stretch').βββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ Combined with ex- ('out'), it formed extendere β to stretch something outward. English borrowed it through Old French estendre in the 14th century, first in legal language: to 'extend' a writ was to enlarge its scope, and to 'extend' land was to assess its value by surveying its full stretch. Physical and temporal senses grew naturally from there. What makes extend remarkable is its relatives. The tendere root, with various Latin prefixes, produced attend (stretch towards), intend (stretch into), contend (stretch against), pretend (stretch before, i.e. put forward falsely), and distend (stretch apart). Without prefixes, the same root gave tend, tender, tension, tendon, tent, and tense. The underlying metaphor β stretching β unites meanings that seem unrelated on the surface. A tent and a pretence share the same etymological fabric, both stretched versions of a single Latin verb.