Etymology Explorer › English

Where does “ob-” come from?

ob- (English) comes from English obligatory, from Middle English obligatorie, from Latin obligātōrius, from Latin obligō, from Latin ob-, from Latin obolus, from Ancient Greek ὀβολός, from Ancient Greek ὀβελός — to throw, reach, pierce; to hit by throwing.

ob- (English): Against; facing; a combining prefix found in...

Definitions

  1. Against; facing; a combining prefix found in...

Ancestry of “ob-”, step by step

StepLanguageWordMeaning
1EnglishobligatoryImposing obligation, legally, morally, or...
2Middle EnglishobligatorieMaking someone obligated to pay a charge;...
3Latinobligātōrius—
4Latinobligō—
5Latinob-towards; against
6Latinobolusobolus
7Ancient Greekὀβολόςobol, obolus, used at Athens as both a weight and...
8Ancient Greekὀβελόςa spit, rod; a horizontal line
9Ancient Greekβέλοςmissile, arrow, dart; weapon; something quickly...
10Proto-Indo-EuropeangʷélHos—
11Proto-Indo-EuropeangʷelH-to throw, reach, pierce; to hit by throwing

Words derived from “ob-”

  • obovate
  • oblanceolate
  • obovoid
  • obcordate
  • obconical
  • obconic
  • obcompressed
  • oboval
  • obround
  • obpyriform
  • obovately
  • obtrullate
  • oblyrate
  • obpandurate
  • obomegoid
  • obreniform
  • obsagittate
  • obrotund
  • obturbinate
  • obdeltoid
  • obdormition
Every word from Proto-Indo-European gʷelH- →