1. a prefix occurring in loanwords from Latin, meaning “both” (ambiguous) and “around” (ambient); used in the formation of compound words: ambitendency.

combining form

  1. indicating bothambidextrous; ambivalence; ambiversion

word-forming element meaning “both, on both sides,” from Latin ambi- “around, round about,” from PIE *ambhi “around” (cf. Greek amphi “round about,” Sanskrit abhitah “on both sides,” Avestan aibi, Old English ymbe, German um, Gaulish ambi-, Old Irish imb- “round about, about,” Old Church Slavonic oba, Lithuanian abu “both”). The PIE root probably is an ablative plural of *ant-bhi “from both sides,” from *ant- “front, forehead” (see ante).


  1. Both:ambilateral.
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