For at the window
challown (khal-lone')
window.
of my house
bayith (bah'-yith)
a house (in the greatest variation of applications, especially family, etc.)
I looked
shaqaph (shaw-kaf')
to lean out (of a window), i.e. (by implication) peep or gaze (passively, be a spectacle) -- appear, look (down, forth, out).
through my casement
'eshnab (esh-nawb')
A latticed window -- casement, lattice.