After reading all the suggestions it will maybe the best to stay in the already started scheme:

    0.00100000 BTC = 1 mBTC
    0.00010000 BTC = 1            
    0.00000100 BTC = 1 µBTC
    0.00000001 BTC = 1 Satoshi  (three letter notation STI or SAT or STS ?? )

If there shall be another specialized unit name for 0.0001 my preferences would be:

Greek:   1 Myriade = 10000

    0.00010000 BTC = 1 Myriasatoshi Coin = 1 MSC

Alternatively: 

    1 Myriasatoshi = 1 MSI


My BTC address:      1METhkrvz2r9d3zkFPQrHnpFC1BjCs64Zf