Kõrvakäevasse
Kõrvakäevasse is the illative form of the Estonian noun kõrvakäev, referring to the ear canal—the passage from the outer ear to the eardrum. In Estonian, the illative case expresses direction into a location, and is formed with the suffix -asse in this instance, yielding kõrvakäevasse.
As a directional form, kõrvakäevasse is used with verbs describing actions carried out inside the ear canal,
Kõrvakäevasse is most common in contexts relating to ear care, examination, or procedures involving the ear
Kõrv (ear), Kõrvakanal (ear canal), Estonian case names (illative).