From Middle English betrayen, betraien, equivalent to be- + tray (“to betray”). English tray (“to betray”) derives from Middle English traien, from Old French traïr (“to commit treason, betray”), from Latin trādō (“to deliver, give over”). Compare also traitor, treason, tradition. In English betrayen meant solely “to commit an act of treason against someone; deliver someone treasonably to an enemy; betray one's trust; deceive, mislead”. The modern sense “to disclose, discover, reveal unintentionally” is due to influence from or merger with English bewray (“to reveal, divulge”), which is similar in sound and meaning. The similarity with German betrügen, Dutch bedriegen, from Proto-West Germanic *bidreugan (“to betray, deceive”), is coincidental.
betray (third-person singular simple present betrays, present participle betraying, simple past and past participle betrayed)
- (transitive) To deliver into the hands of an enemy by treachery or fraud, in violation of trust; to give up treacherously or faithlessly.
- an officer betrayed the city
- (transitive) To prove faithless or treacherous to, as to a trust or one who trusts; to be false to; to deceive.
- to betray a person or a cause
- Quresh betrayed Sunil to marry Nuzhat.
- My eyes have been betraying me since I turned sixty.
- (transitive) To violate the confidence of, by disclosing a secret, or that which one is bound in honor not to make known.
- (transitive) To disclose or indicate, for example something which prudence would conceal; to reveal unintentionally.
- Though he had lived in England for many years, a faint accent betrayed his Swedish origin.
2012 May 24, Nathan Rabin, “Film: Reviews: Men In Black 3”, in The Onion AV Club:
Jones’ sad eyes betray a pervasive pain his purposefully spare dialogue only hints at, while the perfectly cast Brolin conveys hints of playfulness and warmth while staying true to the craggy stoicism at the character’s core.
1966, Marc Léopold Benjamin Bloch, French rural history:
Again, to take a less extreme example, there is no denying that although the dialects of northern France retained their fundamentally Romance character, they betray many Germanic influences in phonetics and vocabulary, [...]
- (transitive) To mislead; to expose to inconvenience not foreseen; to lead into error or sin.
- (transitive) To lead astray; to seduce (as under promise of marriage) and then abandon.
- (to prove faithless or treacherous): sell
to deliver into the hands of an enemy
- Khmer: ក្បត់ (km) (kbɑt), កំបត់ (kɑmbɑt)
- Korean: 배반하다 (ko) (baebanhada), 배신하다 (ko) (baesinhada)
- Kyrgyz: чыккынчылык кылуу (çıkkınçılık kıluu)
- Lao: ຫັກຫລັງ (hak lang)
- Latgalian: izdūt
- Latin: prōdō
- Latvian: nodot
- Lithuanian: išduoti (lt)
- Macedonian: предава impf (predava)
- Malay: belot, khianat, mengkhianati
- Maori: kaikaiwaiū
- Mongolian: урвах (mn) (urvah)
- Norman: trahi
- Bokmål: forråde
- Occitan: traïr (oc)
- Old English: lǣwan
- Persian: خیانت کردن (fa) (xiyânat kardan)
- Plautdietsch: veroden
- Polish: wydać (pl) pf, zdradzić (pl) pf
- Portuguese: trair (pt)
- Romanian: trăda (ro)
- Russian: предава́ть (ru) impf (predavátʹ), преда́ть (ru) pf (predátʹ), выдава́ть (ru) impf (vydavátʹ), вы́дать (ru) pf (výdatʹ)
- Cyrillic: ѝздати pf
- Roman: ìzdati (sh) pf
- Slovak: zradiť pf
- Slovene: izdati (sl) pf
- Spanish: traicionar (es), entregar (es), vender (es)
- Old Spanish: traer, dar traçión
- Swahili: kusaliti
- Swedish: förråda (sv), svika (sv)
- Tajik: хиёнат кардан (xiyonat kardan), кӯрнамакӣ кардан (kürnamakī kardan)
- Thai: ทรยศ (th) (tɔɔ-rá-yót), หักหลัง (hàk-lǎng)
- Turkish: ihanet etmek (tr)
- Turkmen: dönüklik etmek, haýynlyk etmek
- Ukrainian: зра́джувати impf (zrádžuvaty), зра́дити pf (zrádyty)
- Urdu: دھوکا دینا (dhokā denā)
- Uzbek: xiyonat qilmoq, xoinlik qilmoq
- Vietnamese: bội phản (vi), phản bội (vi)
- Welsh: please add this translation if you can
to prove faithless or treacherous
to violate the confidence of, by disclosing a secret
to mislead, to lead into error or sin
to lead astray, as a maiden
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.
Translations to be checked