Source : Webster's Revised Unabridged Dictionary (1913)

Bossy \Bos"sy\, n. [Dim. fr. Prov. E. boss in boss-calf,
   buss-calf, for boose-calf, prop., a calf kept in the stall.
   See 1st {Boose}.]
   A cow or calf; -- familiarly so called. [U. S.]

Bossy \Boss"y\, a.
   Ornamented with bosses; studded.

Source : WordNet®

bossy
     adj : offensively self-assured or given to exercising usually
           unwarranted power; "an autocratic person"; "autocratic
           behavior"; "a bossy way of ordering others around"; "a
           rather aggressive and dominating character"; "managed
           the employees in an aloof magisterial way"; "a
           swaggering peremptory manner" [syn: {autocratic}, {dominating},
            {high-and-mighty}, {magisterial}, {peremptory}]
     [also: {bossiest}, {bossier}]