segment (English)

Where does "segment" come from?

The English noun 'segment' derives directly from the Latin noun 'segmentum', which referred to a piece cut off, a strip, a segment of the earth, or even a strip of tinsel[1]. The Latin noun was built from the verb 'secare', meaning 'to cut', alongside the noun-forming suffix '-mentum'[1][2]. Looking further back, the verb 'seco' traces through Proto-Italic '*sekaō' to the Proto-Indo-European root '*sek-', also meaning 'to cut'[3]. Over time, English adopted the term to describe various cut portions, sections, and naturally divided pieces across geometry, biology, and language.

Open questions

• The Proto-Italic form '*sekaō' and the Proto-Indo-European root '*sek-' are reconstructed ancestral stages that are not directly attested in historical texts. [3]

Full etymology tree

• segment (English), 'A length of some object.'
  • derived segmentum (Latin), 'cutting; cut; slice; piece'
    • suffix seco (Latin), 'to cut, cut off'
      • inherited *sekaō (Proto-Italic), 'to cut'
        • inherited *sek- (Proto-Indo-European), 'to cut, cut off, sever'
    • suffix -mentum (Latin), 'instrument, medium, or result of'

Ancestors

• *sek- (Proto-Indo-European)
• segmentum (Latin)

Descendants and derived words

• bisegment (English)
• circle segment (English)
• diplosegment (English)
• haplosegment (English)
• hemisegment (English)
• intersegment (English)
• intersegment (English)
• intrasegment (English)
• macrosegment (English)
• microsegment (English)
• midsegment (English)
• monosegment (English)

Sources

1. segment (English) - Wiktionary
2. segmentum (Latin) - Wiktionary
3. seco (Latin) - Wiktionary

Updated October 2026

More words starting with S

Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris