verb

lengthen

to make longer, to extend

She had to lengthen her skirt.

She had to lengthen her skirt.

The days lengthen in spring.

The days lengthen in spring.

((sth.)) to make (sth.) longer She had to lengthen her skirt.

Synonyms: extend, prolong, stretch; Antonyms: shorten, curtail

From the noun 'length' plus the verb-forming suffix '-en', meaning 'to make'.

The suffix '-en' often means 'to make' or 'to become', as in 'shorten', 'widen', and 'strengthen'. Think of adding 'length' to something.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.