Sindarin: Pelargir ‘Garth of Royal-ships’ (as also known in English, German)
References: Case-sensitive: LR(21), LR/Index(12), RK(9), S(3), UT(6), VIII(37), IX(5), XII(22) Case-insensitive: LR(1), LR/Index(1)
Pelargir — Tolkien Gateway
Pelargir — The Thain's Book
Pelargir, Haven of the Kings of Gondor. — Encyclopedia Arda