PennsylvaniayoudaoicibaDictYouDict[Pennsylvania 词源字典]
American colony, later U.S. state, 1681, literally "Penn's Woods," a hybrid formed from the surname Penn (Welsh, literally "head") + Latin sylvania (see sylvan). Not named for William Penn, the proprietor, but, on suggestion of Charles II, for Penn's late father, Admiral William Penn (1621-1670), who had lent the king the money that was repaid to the son in the form of land for a Quaker settlement in America. The story goes that the younger Penn wanted to call it New Wales, but the king's secretary, a Welshman of orthodox religion, wouldn't hear of it. Pennsylvania Dutch is attested from 1824.[Pennsylvania etymology, Pennsylvania origin, 英语词源]
Pennsylvanian (adj.)youdaoicibaDictYouDict
1698, from Pennsylvania + -an. In reference to a geological system, attested from 1891. As a noun meaning "a person of Pennsylvania," by 1685.
TransylvaniayoudaoicibaDictYouDict
literally "beyond the forest," from Medieval Latin, from trans "beyond" (see trans-) + sylva (see sylvan). So called in reference to the wooded mountains that surround it.