by Allah

Adverb

by Allah (not comparable)

1. An oath to emphasize sincerity or truthfulness, by God
   • The eldest, however, having hent in hand a bannock of bread, exclaimed, “By Allah, verily this cake was baked by a woman in her ailment!”1885, Richard F. Burton, “Story of the Sultan of Al-Yamman and his three sons”, in A Plain and Literal Translation of the Arabian Nights Entertainments, volume III, page 357
   • O community of Muhammad! By Allah, if you knew what I knew, you would laugh little and weep much.1989, Malik ibn Anas, translated by Aisha Abdurrahman Bewley, Al-Muwatta of Imam Malik ibn Anas
2. Very, truly, indeed.
   • ‘Was not the best food to him camel meat and the best drink camel milk[?]’ They said, ‘Yes, by Allah.’2007, Muhammad Saed Abdul-Rahman, The Meaning and Explanation of the Glorious Qur'an, page 7

   Synonyms:

   very

Interjection

1. An exclamation of surprise or excitement, oh my God! good Lord!
   • “Oh!” said the King, “by Allah! but vengeance is an inspiriting pleasure!”1878, Mariana Monteiro, Allah-Akbar. God is Great, page 101

   Synonyms:

   wow