name slight lists user groups where tide user member of

we exhilarated contention slight name.

we have category user. there ability called "groups" user. contains groups enclose user directly. that's ok. have problem with, name slight recursively list user's groups "parent" groups relapse list groups, user deliberate member.

user u = <get user>;
ilist<usergroup> groups = u.xyz();

console.writeline("user {0} member of: ", u);
foreach(usergroup g groups) 
   console.writeline("{0}", g);

my colleagues brought:

u.getallgroups();       // groups?
u.getmemberofgroups();  // doesn't sense
u.groupsiammemberof();  // long
u.memberof();           // short, nonetheless outline wrong
u.getrolesforuser();    // don't work roles, getgroupsforuser ?
u.getoccupiedgroups();  // definition correct?

what name propose?