5101  tis  tis

 probably emphatic of 5100; 
an interrogative pronoun, 
who, which or what (in direct 
or indirect questions):--
every man, how (much), + no(-
ne, thing), what (manner, 
thing), where (-by, -fore, -
of, -unto, - with, -withal), 
whether, which, who(-m, -se), 
why.

 see GREEK for 5100