TWO RHYMING RIDDLES

1)
A one-syllable word - an amphibian I vow,
Cut me in half - I'm two words now;
I'm English, I'm Latin - I and my brother,
What's English in one half is Latin in the other.

2)
Absence of me is like absence of life,
I come from desire - in wishes and strife;
A vision of time when good will prevail,
A help when your courage may falter or fail.

Answers:

1. TOAD  (TO and AD)
2. HOPE