And thou saidst
'amar  (aw-mar')
to say (used with great latitude)
I shall be a lady
gbereth  (gheb-eh'-reth)
mistress -- lady, mistress.
for ever
`owlam  (o-lawm')
concealed, i.e. the vanishing point; generally, time out of mind (past or future), i.e. (practically) eternity; frequentatively, adverbial (especially with prepositional prefix) always
so that thou didst not lay
suwm  (soom)
to put (used in a great variety of applications, literal, figurative, inferentially, and elliptically)wholly, work.
these things to thy heart
leb  (labe)
the heart; also used (figuratively) very widely for the feelings, the will and even the intellect
neither didst remember
zakar  (zaw-kar')
to mark (so as to be recognized), i.e. to remember; by implication, to mention
the latter end
'achariyth  (akh-ar-eeth')
the last or end, hence, the future; also posterity -- (last, latter) end (time), hinder (utter) -most, length, posterity, remnant, residue, reward.
of it