Innerste, in earlier times called the Inste (1805), Inderste (1567), Indistria (1313), Entrista (1065) and Indrista (1013), probably goes back to the Indo-Germanic root oid = turbulent, strong.
Innerste, varem ka Inste (1805), Inderste (1567), Indistria (1313), Entrista (1065) ja Indrista (1013), pärineb arvatavasti indogermaani tüvest oid = rahutu, tugev.