水底

Chinese

		water; river	background; bottom; base background; bottom; base; (possessive part.); (subor. part.)
trad. (水底)		水	底
simp. ^#(水底)		水	底

Mandarin
(Pinyin): shuǐdǐ

(Zhuyin): ㄕㄨㄟˇ ㄉㄧˇ
Cantonese
(Guangzhou–Hong Kong, Jyutping): seoi² dai²

(Taishan, Wiktionary): sui² ai²
Hakka (Sixian, PFS): súi-tái
Southern Min (Teochew, Peng'im): zui² doi²

Mandarin
- (Standard Chinese)⁺
  - Hanyu Pinyin: shuǐdǐ [Phonetic: shuídǐ]
  - Zhuyin: ㄕㄨㄟˇ ㄉㄧˇ
  - Tongyong Pinyin: shuěidǐ
  - Wade–Giles: shui³-ti³
  - Yale: shwěi-dǐ
  - Gwoyeu Romatzyh: shoeidii
  - Palladius: шуйди (šujdi)
  - Sinological IPA ^(key): /ʂu̯eɪ̯²¹⁴⁻³⁵ ti²¹⁴⁻²¹⁽⁴⁾/
Cantonese
- (Standard Cantonese, Guangzhou–Hong Kong)⁺
  - Jyutping: seoi² dai²
  - Yale: séui dái
  - Cantonese Pinyin: soey² dai²
  - Guangdong Romanization: sêu² dei²
  - Sinological IPA ^(key): /sɵy̯³⁵ tɐi̯³⁵/
- (Taishanese, Taicheng)
  - Wiktionary: sui² ai²
  - Sinological IPA ^(key): /sui⁵⁵ ai⁵⁵/
Hakka
- (Sixian, incl. Miaoli and Neipu)
  - Pha̍k-fa-sṳ: súi-tái
  - Hakka Romanization System: sui^ˋ dai^ˋ
  - Hagfa Pinyim: sui³ dai³
  - Sinological IPA: /su̯i³¹ tai̯³¹/
Southern Min
- (Teochew)
  - Peng'im: zui² doi²
  - Pe̍h-ōe-jī-like: tsúi tói
  - Sinological IPA ^(key): /t͡sui⁵²⁻³⁵ toi⁵²⁻²¹/

水底

Compound of Old Japanese elements 水 (mizu, “water”) +‎ 底 (soko, “bottom”).^[1]^[2]

水(みず)底(そこ) • (mizusoko)

Compound of Old Japanese elements 水 (mi, “water”) +‎ な (na, Old Japanese possessive particle) +‎ 底 (soko, “bottom”).^[1]^[2]

Sometimes also read as minazoko. The soko changes to zoko as an instance of rendaku (連濁).^[1]

水底(みなそこ) • (minasoko) (alternative reading hiragana みなぞこ, rōmaji minazoko)

From Middle Chinese compound 水底 (sywijX *děi, literally “water bottom”). Compare modern Mandarin 水底 (shuǐdǐ).

水(すい)底(てい) • (suitei)

↑ ^1.0 ^1.1 ^1.2 Shōgaku Tosho (1988) 国語大辞典（新装版） [Unabridged Dictionary of Japanese (Revised Edition)] (in Japanese), Tōkyō: Shogakukan, →ISBN
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 ^2.5 Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN
↑ ^3.0 ^3.1 ^3.2 NHK Broadcasting Culture Research Institute, editor (1998), NHK日本語発音アクセント辞典 [NHK Japanese Pronunciation Accent Dictionary] (in Japanese), Tokyo: NHK Publishing, Inc., →ISBN