What is the Latin word for lengthen?

The usual Latin words for “lengthen” are prōdūcō, prōrogō, trahō. The right choice depends on the sense; see the distinctions below.

English → Latin

“lengthen” in Latin

prōdūcōto lead or bring forth, forward or out; to conduct to; bring before, present; to draw or stretch out, lengthen, extend prōrogōto prolong, draw out, keep (something) going; to extend (a term of office, a certain situation); to preserve, keep for a trahōto drag, pull; to trail; to extract, withdraw, derive, take away

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

lengthen

To make longer, aliquid longius facere; aliquid producere. To lengthen a syllable, syllabam producere (grammatical).

To prolong, producere; prorogare; trahere (☞ not prolongare): to lengthen one’s life, alicui vitam producere.

Quick answer

What is the Latin word for lengthen?: The usual Latin words for “lengthen” are prōdūcō, prōrogō, trahō. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.