lo 1
/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 LA 2 ) and lo, shortened form of loke (OE loca ), impv. of loken to LOOK ]
lo 2
/loh/ , adj.
an informal, simplified spelling of low 1 , used esp. in labeling or advertising commercial products: lo calorie.