In that day
yowm  (yome)
a day (as the warm hours),
there shall be a fountain
maqowr  (maw-kore')
fountain, issue, spring, well(-spring).
pathach  (paw-thakh')
to open wide; specifically, to loosen, begin, plough, carve
to the house
bayith  (bah'-yith)
a house (in the greatest variation of applications, especially family, etc.)
of David
David  (daw-veed')
loving; David, the youngest son of Jesse -- David.
and to the inhabitants
yashab  (yaw-shab')
to sit down (specifically as judge. in ambush, in quiet); by implication, to dwell, to remain; causatively, to settle, to marry
of Jerusalem
Yruwshalaim  (yer-oo-shaw-lah'-im)
founded peaceful; Jerushalaim or Jerushalem, the capital city of Palestine -- Jerusalem.
for sin
chatta'ah  (khat-taw-aw')
an offence (sometimes habitual sinfulness), and its penalty, occasion, sacrifice, or expiation; also (concretely) an offender
and for uncleanness
niddah  (nid-daw')
rejection; by implication, impurity, especially personal (menstruation) or moral (idolatry, incest)