砂岩

Chinese
sand; gravel; granule cliff; rock
simp. and trad.
(砂岩)		 砂 岩

Pronunciation

Noun

砂岩

  1. sandstone

Japanese

Etymology 1
Kanji in this term
砂 岩
さ
Grade: 6		 がん
Grade: 2
on’yomi

Ultimately from Middle Chinese 砂岩 (MC srae ngaem, “sandstone”, literally “sand + rock”). Uses the kan'on reading, suggesting a later borrowing. Compare modern Cantonese reading saa1 ngaam4.

Pronunciation

Noun

砂(さ)岩(がん) • (sagan) 

  1. (petrology) sandstone
  2. grit (such as for sanding, polishing, or traction)

Etymology 2
Kanji in this term
砂 岩
しゃ
Grade: 6		 がん
Grade: 2
on’yomi

Appears to be a shift from sagan above. Less common. Uses the goon reading of sha for the 砂 character.

Pronunciation

Noun

砂(しゃ)岩(がん) • (shagan) 

  1. (petrology, uncommon) sandstone

References
  1. 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, →ISBN
  2. 1998, NHK日本語発音アクセント辞典 (NHK Japanese Pronunciation Accent Dictionary) (in Japanese), Tōkyō: NHK, →ISBN
  3. 1997, 新明解国語辞典 (Shin Meikai Kokugo Jiten), Fifth Edition (in Japanese), Tōkyō: Sanseidō, →ISBN
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