mitenkä

Etymology
Constructed according to the model of words, , treating -kä as if it were a suffix.

Adverb

 * 1) how, how…then, just how, sometimes what fortified "how"
 * Että mitenkä?
 *  What  did you say?
 * Whaddayamean?
 *  What  did you say?
 * Whaddayamean?