\setupbodyfont[lucidaot]

\startTEXpage[offset=10pt]

$ \char"03B1 $

$ \char"1D770 $

$ \mathss\mathbf\mathgreekupright\char"03B1 $

\setupmathematics
  [lcgreek=normal,
   ucgreek=normal]

$ \mathss\mathbf\char"03B1 $

\stopTEXpage
