Source : Webster's Revised Unabridged Dictionary (1913)

Lowly \Low"ly\, adv.
   1. In a low manner; humbly; meekly; modestly. ``Be lowly
      wise.'' --Milton.

   2. In a low condition; meanly.

            I will show myself highly fed, and lowly taught.
                                                  --Shak.

Lowly \Low"ly\, a. [Compar. {Lowlier}; superl. {Lowliest}.]
   [Low, a. + -ly.]
   1. Not high; not elevated in place; low. ``Lowly lands.''
      --Dryden.

   2. Low in rank or social importance.

            One common right the great and lowly claims. --Pope.

   3. Not lofty or sublime; humble.

            These rural poems, and their lowly strain. --Dryden.

   4. Having a low esteem of one's own worth; humble; meek; free
      from pride.

            Take my yoke upon you, and learn of me, for I am
            meek and lowly in heart.              --Matt. xi.
                                                  29.

Source : WordNet®

lowly
     adj 1: low or inferior in station or quality; "a humble cottage";
            "a lowly parish priest"; "a modest man of the people";
            "small beginnings" [syn: {humble}, {low}, {modest}, {small}]
     2: inferior in rank or status; "the junior faculty"; "a lowly
        corporal"; "petty officialdom"; "a subordinate
        functionary" [syn: {junior-grade}, {inferior}, {lower}, {lower-ranking},
         {petty(a)}, {secondary}, {subaltern}, {subordinate}]
     3: used of unskilled work (especially domestic work) [syn: {humble},
         {menial}]
     4: of low birth or station (`base' is archaic in this sense);
        "baseborn wretches with dirty faces"; "of humble (or
        lowly) birth" [syn: {base}, {baseborn}, {humble}]
     [also: {lowliest}, {lowlier}]