Ancient Greek edit

Etymology edit

From ὀρθός (orthós) +‎ -ιος (-ios).

Pronunciation edit

 

Adjective edit

ὄρθῐος (órthiosm (feminine ὀρθί̆ᾱ, neuter ὄρθῐον); first/second declension

  1. straight, steep, uphill; upright, standing
  2. (of voice, sound) high-pitched, shrill
  3. (military) formed in column (opp. in line or extended front)
  4. (geometry) right angle

Inflection edit

Derived terms edit

References edit