Find at least two common words with six consonants in a row.

I can think of a word which has been common to me since a long time , but might not be so with all...

SYZYGY .... it is an actual word... meaning the straight line configuration of 3 celestial bodies (as the sun and earth and moon)

This is also a bit controversial as it uses a not so widely accepted vowel 'Y'... but in any case holds ture for this puzzle.