mid-12c., "support of a span of a bridge," from Medieval Latin pera, of unknown origin, perhaps from Old North French pire "a breakwater," from Vulgar Latin *petricus, from Latin petra "rock" (see petrous), but OED is against this. Meaning "solid structure in a harbor, used as a landing place for vessels," is attested from mid-15c.
例文
1. The ship was moored broadside to the pier .
この船は埠頭のそばに横泊している。
2.We stood on the pier and watched as they embarked.
突起波止場に立って彼らの乗船を見送った。
3.The motorboat put on speed as soon as it left the pier .