preposition
Etymology: Middle English along (construed with on ), alteration of ilong (construed with on ), from Old English gelang (construed with on, æt ), from ge-, associative prefix + lang long — more at co- , long
1. dialect : because of : on account of
it's all along of mother leaving us like this — Joseph Conrad
2. dialect
a. : with
you come in here along of me — Richard Llewellyn
b. : to
they belong along of Snug here — G.A.Chamberlain