sngon

སྔོན
formerly, before, previously, beforehand [RY]

former, front, ahead, formerly, of old, anciently, before, previously, above, SA gong, sngan, once [JV]

a very long time ago [RY]

1) Abbr. of sngon ma, sngon du; previous, prior to, formerly, earlier, preceding, first, before, former, once, once upon a time; past, prior, anterior, antecedent, foregoing, precedent. 2) Abbr. of sngon po; bluish color, blue [RY]

once, in the past; x sngon gro byin skyes la kun dga' bos sgom bslabs pa once, in the past, Ananda was teaching Shrona to meditate [RY]

long ago, [RY]

1) previous, prior to, former[ly], earlier, preceding, 1st, before, ancient [IW]

in the distant past, [RY]

long ago [RY]

Once there were [RY]

once [RY]

Many generation past, [RY]

Long ago, [RY]