諱 - posthumous (real) name

(for a nobleman) to bestow one of the kanji in his name upon someone (e.g. meritorious retainer, boy coming of age, etc.)

to give offense; to get on someone's nerves; to displease

posthumous name

one kanji in the name of a nobleperson (with a multiple-kanji name)

displeasure; offense; offence; disliking

real name (of a deceased person or a noble)

semicentennial memorial service

avoiding using a name (naming taboo in ancient China)