guise 
(gīz)
(gīz)n.
1. Outward appearance or aspect; semblance.
2. False appearance; pretense: spoke to me under the guise of friendship.
3. Mode of dress; garb: huddled on the street in the guise of beggars.
4. Obsolete Custom; habit.
[Middle English, manner, fashion, from Old French, of Germanic origin; see weid- in the Appendix of Indo-European roots.]