yowm (Hebrew #3117)
a day (as the warm hours), whether literal (from sunrise to sunset, or from one sunset to the next), or figurative (a space of time defined by an associated term), (often used adverb)
KJV usage: age, + always, + chronicals, continually(-ance), daily, ((birth-), each, to) day, (now a, two) days (agone), + elder, X end, + evening, + (for) ever(-lasting, -more), X full, life, as (so) long as (... live), (even) now, + old, + outlived, + perpetually, presently, + remaineth, X required, season, X since, space, then, (process of) time, + as at other times, + in trouble, weather, (as) when, (a, the, within a) while (that), X whole (+ age), (full) year(-ly), + younger.
Pronounce: yome
Origin: from an unused root meaning to be hot
machatsiyth (Hebrew #4276)
a halving or the middle
KJV usage: half (so much), mid(-day).
Pronounce: makh-ats-eeth'