Elements and matter

Thrust

πρόωσις

proōsis

Proōsis is a forward push or thrust.

From the book

Stobaeus, Volume I

John Stobaeus · Diotimos Editions · 2026

Browse this book’s lexicon →

Orientation

At a Glance

  • The wordProōsis is a forward push or thrust.
  • In StobaeusThe account of marine disturbances contrasts waves that recoil with waves having only a forward thrust.
  • In this edition“Forward thrust” makes the directional contrast explicit.
  • A place to beginForward thrust is contrasted with returning recoil in advancing waves.
English renderings
forward thrust; pushing onward

Meaning

Proōsis is a forward push or thrust. Direction is part of the term’s force.

Use in the book

The account of marine disturbances contrasts waves that recoil with waves having only a forward thrust. The distinction concerns how the advancing water behaves after or during its incursion. It is not a general definition of every wave as a single one-way movement.

Places to read

  1. I.40.1.54Forward thrust is contrasted with returning recoil in advancing waves.

Translation in this edition

“Forward thrust” makes the directional contrast explicit.

Source note

Wachsmuth, volume I, printed pp. 268–269. The examples of Helice and Bura illustrate destructive incursions within the ancient account; no precise modern wave classification is supplied.