Refers to the act of anchoring a vessel or the place where a vessel anchors. A technical nautical term.
The ship anchored at the port's anchorage.
This bay is a good natural anchorage.
Compound of 碇 (ikari, 'anchor') and 置 (chi, 'placement'). The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of anchoring a vessel.