/loh/, interj.look! see! (frequently used in Biblical expressions; now usually used as an expression of surprise in the phrase lo and behold).[bef. 900; ME; conflation of lo exclamation of surprise, grief, or joy, O! (OE la; see LA2) and lo, shortened form of loke (OE loca), impv. of loken to LOOK]lo2/loh/, adj.an informal, simplified spelling of low1, used esp. in labeling or advertising commercial products: lo calorie.
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