親不知

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Japanese

[edit]
Kanji in this term
おや
Grade: 2
しらず
Grade: 4 Grade: 2
kun'yomi jukujikun
For pronunciation and definitions of 親不知 – see the following entry.
親知おやしらず
[noun] [from at least 1595] Short for 親不知歯 (oyashirazu-ba, literally parents not-knowing tooth). a wisdom tooth (from the likelihood that the wisdom teeth do not erupt until after no longer in daily contact with one's parents, due to moving or death)
[noun] [date uncertain, likely late 1100s] ignorance of one's parentage; such a person who does not know their parents
[noun] [from 1711] (historical) a specific kind of formal adoption during the Edo period, wherein the adoptee would have no knowledge of their birth parents; such an adoptee
[noun] [date uncertain, some time after 1100s] (regional, possibly archaic) a section of coast with dangerous surf (by analogy from having to pay all attention to surviving the conditions, and not having a moment to spare to think of one's parents)
[proper noun] [roughly late 1100s] A cliff-lined coast in Itoigawa, Niigata Prefecture, Japan
[proper noun] [date uncertain, some time after late 1100s] A cliff-lined coast in Shizuoka, Shizuoka Prefecture, Japan
(This term, 親不知, is an alternative spelling of the above term.)