The apple of one’s eye refers to a precious, cherished, and beloved person or thing; someone or something that is deeply treasured above all others.
While historically used to describe romantic partners, close friends, or favored possessions, in modern English the phrase is most frequently used by parents or grandparents referring to a favorite child or grandchild.
Origin: Ancient Anatomy, Not Fruit
Although the idiom features a fruit, its origins have nothing to do with apples. Instead, it stems from an ancient misunderstanding of human eye anatomy:
- The “Solid” Pupil Myth: In ancient times, people believed that the pupil of the eye was not an aperture (an opening that lets in light), but rather a solid, spherical ball floating in the socket. Because it was round, early Germanic and Old English speakers referred to the pupil as the “apple” of the eye (in early Germanic languages, the word apple was a generic term used for any round fruit or anatomical sphere).
- Center of Vision and Soul: The pupil was recognized as the center of sight and human health, and by extension, the most delicate and vital part of the body to protect. Ancient peoples instinctively guarded their eyes from harm, making the “apple of the eye” the ultimate symbol of something invaluable that must be cherished and shielded.
Biblical Translations & Old English Roots
The phrase is often incorrectly assumed to originate in the Bible. While it appears several times in the King James Version, most notably in Deuteronomy 32:10 (“he kept him as the apple of his eye”) and Psalm 17:8 (“Keep me as the apple of the eye”)—these were 17th-century English translators rendering Hebrew expressions into a vernacular idiom that already existed in English.
In fact, the phrase appears in written English as far back as A.D. 885 in King Alfred the Great’s translation of Gregory’s Pastoral Care, centuries before printed English Bibles popularized the phrase nationwide.
Modern Usage: A Dying Era of Sentimental Idioms?
In contemporary English, heavy, earnest terms of endearment like “apple of my eye,” “the light of my life,” or “the center of my world” have largely fallen out of daily conversation. Modern speakers tend to avoid this level of overt, poetic sentimentality in casual speech, often finding it overly formal or dramatic.
Of this family of sentimental expressions, the only idiom that remains in heavy, regular use today is “my pride and joy”, which is used almost exclusively when parents or grandparents talk about their children, or when hobbyists refer to a prized possession (like a restored car or guitar).
Sentence Examples
- “Out of all his grandchildren, his youngest granddaughter is truly the apple of his eye.”
- “He owns forty classic cars in his collection, but that 1967 Mustang is the apple of his eye.”
- “She was her father’s only daughter and the absolute apple of his eye.”
- “I know he loves all his children equally, but his eldest daughter has always been the apple of his eye.”
Similar and Related Idioms
- My Pride and Joy: A deeply cherished person or object that brings immense happiness and satisfaction (the most common modern equivalent).
- The Light of My Life: Someone who brings immense joy, love, and hope into your existence.
- The Center of My World: A person around whom your entire life and emotional focus revolves.
- Fair-Haired Boy (or Golden Child): A favored or favored-upon individual who receives special treatment and admiration.