updrift

English

Etymology

up- +‎ drift

Noun

updrift (plural updrifts)

1. (phonetics) A rising (over time) of the pitch of the tones of a tonal language.

Adverb

updrift (not comparable)

1. On the upward side of a drift.

   A groyne promotes the build-up of sediment on its updrift side, and reduces erosion on the downdrift side.