the.com/ebb
the slow exhale of the ocean, leaving everything it touched out in the open
means To recede or flow back, especially the tide moving away from the shore, or by extension any gradual decline or fading away.
from From Old English ebba, the falling away of the tide, with kin in Old Frisian and Old Saxon ebbia. The deeper root is thought to be the Proto-Germanic *af- meaning 'away, off' — the same 'away-ness' you hear in 'off' itself. So at its heart, to ebb has always meant simply: to go off, to draw back.
- tide phase
- the outgoing tide between high and low water
- old root
- from Old English ebba, meaning low tide
- figurative use
- to wane, decline, or drain away slowly
- twice daily
- most coasts ebb roughly twice every day
for instance
bay of fundy tides — world's highest tidal range at 53 feet between high and low tide in nova scotia
thames river london — historically experienced dramatic ebbs that exposed mudflats and allowed pedestrians to walk across in winter