D defs.my
Entry 1 sense Webster, 1913

Although

/ôl-thōʹ/ · Al·though · IPA /ɔlˈðoʊ/
01 conj. Grant all this; be it that; supposing that; notwithstanding; though.
  1. 1.
    Grant all this; be it that; supposing that; notwithstanding; though.
    Although all shall be offended, yet will not I.” — Mark xiv. 29.
Syn. Although, Though.
Although, which originally was perhaps more emphatic than though, is now interchangeable with it in the sense given above. Euphonic consideration determines the choice.