h₂ew-s-
“ear (nominal)”Source of Latin auris, English ear, aural, auscultate
Root for the ear, yielding Latin auris and English ear, aural, auscultate.
Discussion
*h₂ew-s- is the Proto-Indo-European root for "ear," specifically the organ of hearing. The root is often reconstructed as *h₂ews- or *h₂ous-, with the laryngeal *h₂ colouring the following vowel to *a in some branches.
Latin auris "ear" (from earlier *ausis) is the most transparent reflex, yielding English "aural," "auricle," and "auscultate" (to listen with a stethoscope, from auscultāre "to listen"). The name "Australia" is unrelated, deriving instead from Latin australis "southern."
In Germanic, the root gave Proto-Germanic *ausō, which became Old English ēare and modern English "ear." German Ohr and Dutch oor continue the same form. The compound "earwig" (ēarwicga, "ear creature") preserves an ancient folk belief about insects entering the ear.
Greek οὖς (oûs), genitive ὠτός (ōtós), gave medical terminology including "otitis," "otology," and "otoscope." Sanskrit úṣas is not related (it means "dawn"), but the ear root does not have a clear Sanskrit cognate — some scholars cite uṣá- with reservations.
Old Church Slavonic ucho and Lithuanian ausis "ear" confirm the Balto-Slavic reflexes. The root's wide distribution makes it one of the basic body-part terms securely attributable to PIE.
Related Roots
English Words from *h₂ew-s-
These modern English words descend from this root. Each page traces the full journey from PIE to present-day English.