ultramarine (n.) Look up ultramarine at Dictionary.com
1590s, "blue pigment made from lapis lazuli," from Medieval Latin ultramarinus, literally "beyond the sea," from Latin ultra- "beyond" (see ultra-) + marinus "of the sea," from mare "sea, the sea, seawater," from PIE root *mori- "body of water." Said to be so called because the mineral was imported from Asia.