lo

/loʊ/

Modern equivalent

look, behold

What it means

An interjection drawing attention to what follows — 'look!' or 'behold!'. It often marks the moment something is about to happen: in Mark 14:42 it comes immediately before Judas arrives

In the KJV

For, lo, the winter is past, the rain is over and gone;

Song of Solomon 2:11