the.com/tideland

means The flat coastal ground that lies underwater at high tide and exposed at low tide — neither fully sea nor fully land.

from A straightforward compound of 'tide' and 'land,' built the way English loves to build: by jamming two plain words together until a new one falls out. 'Tide' itself traces back to Old English 'tīd,' meaning simply 'time' or 'period' — tides were originally just the sea's way of keeping time, long before the word narrowed to mean the rise and fall of water itself. So 'tideland' is, at its root, 'time-governed land' — ground that answers to the clock of the moon rather than the deed to any owner.