from an unused root meaning apparently to be sticky (rather perb. a demonstrative); from טוּא, through the idea of dirt to be swept away); mud or clay; figuratively, calamity; clay, dirt, mire.
from חָמַר; properly, a bubbling up, i.e. of water, a wave; of earth, mire or clay (cement); also a heap; hence, a chomer or dry measure; clay, heap, homer, mire, motion.
or (shortened) חֻץ; (both forms feminine in the plural) from an unused root meaning to sever; properly, separate by awall, i.e. outside, outdoors; abroad, field, forth, highway, more, out(-side, -ward), street, without.