Word Study
lo
CIDE DICTIONARY
lo, interj. [OE. lo, low; perh. akin to E. look, v.].
Look; see; behold; observe. [1913 Webster]
OXFORD DICTIONARY
lo, int. archaic calling attention to an amazing sight.
Idiom
lo and behold joc. a formula introducing a surprising or unexpected fact.
Etymology
OE la int. of surprise etc., & ME lo = loke LOOK
ROGET THESAURUS
lo
Wonder
N wonder, marvel, astonishment, amazement, wonderment, bewilderment, amazedness, admiration, awe, stupor, stupefaction, stound, fascination, sensation, surprise, note of admiration, thaumaturgy, surprised, aghast, all agog, breathless, agape, open- mouthed, awestruck, thunderstruck, moonstruck, planet-struck, spellbound, lost in amazement, lost in wonder, lost in astonishment, struck all of a heap, unable to believe one's senses, like a duck ion thunder, wonderful, wondrous, surprising, unexpected, unheard of, mysterious, miraculous, indescribable, inexpressible, inaffable, unutterable, unspeakable, monstrous, prodigious, stupendous, marvelous, inconceivable, incredible, inimaginable, unimaginable, strange, passing strange, striking, overwhelming, wonder-working, wonderfully fearfully, for a wonder, in the name of wonder, strange to say, mirabile dictu, mirabile visu, to one's great surprise, with wonder, with gaping mouth, with open eyes, with upturned eyes, Int, lo, lo and behold!, O!, heyday!, halloo!, what!, indeed!, really!, surely!, humph!, hem!, good lack, good heavens, good gracious!, Ye gods!, good Lord!, good grief!, Holy cow!, My word!, Holy shit!, gad so!, welladay!, dear me!, only think!, lackadaisy!, my stars, my goodness!, gracious goodness!, goodness gracious!, mercy on us!, heavens and earth!, God bless me!, bless us, bless my heart!, odzookens!, O gemini!, adzooks!, hoity-toity!, strong!, Heaven save the mark, bless the mark!, can such things be!, zounds!, 'sdeath!, what on earth, what in the world!, who would have thought it!, you don't say so!, You're kidding!, No kidding? what do you say to that!, nous verrons!, how now!, where am I?, vox faucibus haesit, one's hair standing on end.For further exploring for "lo" in Webster Dictionary Online