[frock] n [ME frok, fr. MF froc, of Gmc origin; akin to OHG hroch mantle, coat] (14c) 1: an outer garment worn by monks and friars: habit
2: an outer garment worn chiefly by men: a: a long loose mantle b: a workman's outer shirt; esp: smock frock c: a woolen jersey worn esp. by sailors
3: a woman's dress
[2]frock vt (1828) 1: to clothe in a frock
2: to make a cleric of