英和和英

語源

From 中期英語 by herte. Compare French par cœur (literally “by heart”), of which the English may be a calque.

発音

• (Received Pronunciation) IPA: /baɪ ˈhɑːt/
• (General American) IPA: /baɪ ˈhɑɹt/

前置詞句

by heart

1. From unaided memory and in full detail.

   Hyponym: (usually pejorative) by rote

   to learn something by heart

   to know something by heart

   He used to live in that town, and he still knows all the streets by heart.

   • 1906, The Monthly Musical Record‎, volume 36, page 55:

     You should play over all the pieces you know by heart at least once a month or oftener with the printed copies before you: or all sorts of wrong notes may creep in, and you will be leaving out some crescendo, or rallentando, or sforzato.

   • 1943 November – 1944 February (date written; published 1945 August 17), George Orwell [pseudonym; Eric Arthur Blair], Animal Farm […], London: Secker & Warburg, published May 1962, →OCLC:

     None of the other animals on the farm could get further than the letter A. It was also found that the stupider animals, such as the sheep, hens, and ducks, were unable to learn the Seven Commandments by heart.

   • 2026 July 25, Nicholas Muhoro, “The Last Call of Jo-Anne Pedersen, the Girl Who Vanished From a Payphone”, in Skip Boring‎, archived from the original on 26 July 2026:

     Two weeks into the investigation, Jo-Anne’s grandmother, Mary Riley, received a call at her home. When Mary picked up the phone, a heavy male voice said, “Listen to this.” It was followed by the sounds of a young child sobbing hysterically into the receiver. Mary firmly believed this voice belonged to her granddaughter, then the line went dead. This detail alarmed investigators because Mary’s home phone number was unlisted and Jo-Anne was one of the very few people who might have known the private number by heart.

派生語

• byheart

参考

• from memory

参照

• “by heart” in Longman Dictionary of Contemporary English, Longman.
• “by heart”, in OneLook Dictionary Search.

アナグラム

• breathy

動詞

byheart (third-person singular simple present byhearts, present participle byhearting, simple past and past participle byhearted)

1. (India, transitive) To recite from memory.
   • 1989, Gurikar Nanjundasastry Subramanyam, Veena:

     While playing the kruthi, in the veena, the students have to byheart swara, sahitya in vocal then try to play it with the help of the masters to get all the gamakas in the form of sahitya.

2. (India, transitive) To commit to memory; memorise.
   • 1967, N. B. Sen, Progress of education in free India:

     Another glaring disparity was that the Indian Veterinarian was then forced to byheart the doses of medicines, meant for European cattle and other domestic animals.

   • 1980, Debi Prasanna Pattanayak, Jennifer Marie Bayer, H. L. N. Bharati, Literacy education:

     They said that they had 'byhearted' all the pages. ln ancient times there was great emphasis on memorisation and memory training as word of mouth was the only means of transmitting texts in the absence of faculty of reproduction of […]

派生語

• byhearting

アナグラム

• breathy