Other forms: elongated, elongating, elongates
To elongate is to make something longer. Stretched out along one direction.
The word is technical and formal, and it belongs to science, design and anatomy: elongated cells, an elongated shape, elongating a shadow. Everyday English says lengthen or stretch. The adjective elongated is far commoner than the verb and is used in description, particularly of faces, bodies and shadows. Its opposite is shorten, and the noun elongation appears mainly in engineering and biology.
1verbelongateTo make or become longer.
“The shadows elongated as the sun dropped.”
Elongate first meant to move away. Latin ēlongāre covered keeping something at a distance as well as prolonging it, and in Late Middle English elongate meant remote. The stretching sense won later.
Proto-Indo-European
*h₁éǵʰs
Latin
ēlongātus — having been stretched out, elongated; prolonged, protracted; having been kept aloof, removed
Middle English
elongat
English, today
elongate
Built from
From Late Middle English elongat, elongate (“kept away; different or remote in nature”), borrowed from Latin ēlongātus (“having been stretched out, elongated; prolonged, protracted; having been kept aloof, removed”) + Middle English -at. Ēlongātus is the perfect passive participle of ēlongō (“to prolong, protract; to keep aloof, remove; to depart, withdraw”), from Latin ē- (a variant of ex-) + longus (“extended, long, prolonged; far”) (ultimately from Proto-Indo-European dlongʰos (“long”)) + -ō. a doublet of eloign. 2
Etymology from Wiktionary, CC BY-SA