Yes. My Great-Grandmother, from Krakow, used the same diminutive for me.
Related:What is Mietek a nick name for??
I am trying to find out about the origin of the name 'Mietek'
Is this a general nick-name to any one with the name of Mieczyslaw , like Bob for William in England, or something else.
ya, it's mieczysław ;-)
Kto nie z Mieciem to go zmieciem! *(was a joke-slogan gong round about tough communist secret-police boss Mieczysław Moczar who launched an anti-Semtiic puurge in 1968).
* Who ain't with Miecio gets swept away!