"cutter" (of stone or wood), late 14c. (mid-12c. as a surname), agent noun from hew (v.). Hewers of wood and drawers of water to describe the lowliest sort of physical laborers is from Joshua ix:12. Old English has it as wuduheawerum and þam þe wæter beraþ; the modern form of the phrase is from 1535.
heterozygous
hetman
heuristic
heuristics
hew
hewer
hewn
hex
hexa-
hexadecimal
hexagon