碍

碍 (Kangxi radical 112, 石+8, 13 strokes, cangjie input 一口日一戈 (MRAMI), four-corner 1664₁, composition ⿰石㝵)

• 𠿴, 𢣀, 𦡡, 𫣣

• 礙 (Orthodox form in Traditional Chinese)

• Kangxi Dictionary: page 832, character 4
• Dai Kanwa Jiten: character 24283
• Dae Jaweon: page 1248, character 22
• Hanyu Da Zidian (first edition): volume 4, page 2437, character 5
• Unihan data for U+788D

Ideogrammic compound (會意 / 会意): 石 (“rock”) + abbreviated 得 (“obtain, find”) — a rock obstructing one from getting what one wants.^[1] Note that 㝵 is the ancient form of 得, so a direct derivation from 石 + 㝵 may be possible as well, although not supported by Kanjigen.

• Dictionary of Chinese Character Variants (教育部異體字字典), A02872-002#37

(Hyōgai kanji)

• Go-on: げ (ge)
• Kan-on: がい (gai)
• Kun: さまたげる (samatageru, 碍げる)

• 無碍(むげ) (muge)

From Middle Chinese 礙 (MC ngojH).

• IPA^(key): [ɡa̠i]

碍(がい) • (gai) 

1. to hinder; to obstruct

In modern Japanese, 碍 is mostly replaced by 害, due to the deprecation of non-tōyō kanji caused by the Japanese script reform.

(replaced by 害 in modern orthography):

(not replaced by 害 in modern orthography):

碍 (eumhun 막을 애 (mageul ae))

1. alternative form of 礙 (“hanja form^? of 애 (“to obstruct; to block; to hinder; to deter”)”)

• 국제퇴계학회 대구경북지부 (國際退溪學會 大邱慶北支部) (2007). Digital Hanja Dictionary, 전자사전／電子字典. [1]

• 礙 (ngại)^[1]
• 㝵 (ngài)^[1]

碍: Hán Việt readings: ngại (牛(ngưu)代(đại)切(thiết))^{[2][3][4][1][5]}, ngài^[1]
碍: Nôm readings: ngại^{[2][3][4][1][6]}, ngáy^[7][1], ngái^[4]

1. chữ Hán form of ngại (“to obstruct; to block; to hinder; to deter”)
2. chữ Nôm form of ngại (“worried; hesitant; fearful”)