It doesn t matter how many of them end in uis maybe it s not even Lithuanian I don t know ask Phil s dad But Rudzevecuis is a name it gets 25 400 hits and there are loads of people out there with that name Yeah Rudzevicius is also a name and it s about 50 more common than Rudzevecuis But Phil Rudzevicius and Phillip Rudzevicius get zero hits that s the point Phil Rudzevecius gets 1 hit and Phillip Rudzevecius gets zero Phil Rudzevecuis and Phillip Rudzevecuis get 179 and 140 respectively with loads of decent sources for Rudd I imagine Rudzevecuis and Rudzevicius are variations on the same name like Davis and Davies for example He s even credited as Phil Rudzevecuis in the CD booklet for Buster Brown s Something to Say If you can find a good source for Phil Rudzevicius we can put it in but until then we can t