opwaarts
Opwaarts is a Dutch directional term that denotes movement or orientation toward the higher end of a space or toward the source of a river. In geography and hydrology it is used to describe the upstream direction, parallel to the English term upstream; the opposite direction is afwaarts, meaning downstream. In cartography and navigation, opwaarts can appear on maps or in instructions to indicate the path toward the river’s source or toward higher ground.
Etymologically, opwaarts combines op with waarts, forming a compound adverb meaning toward the upper part or
Usage and examples vary by domain. In hydrology or river navigation, one might say that a vessel