The warbler sweetly to its lover sings;
Yet all the wood with bated breath awaits
The melody that through its temple rings —
Thus dream we not o’ the scope each deed creates.
William Blocksidge, Songs o’ the South, London: Watts, 1908, p. 79
bated = restrained, to have reduced the force or intensity of something (the phrase “with bated breath” refers to waiting for something in a anxious, nervous, or worried state, or in an excited manner, or in a state of suspense); (archaic) to have lowered or reduced an amount, estimation, or price
o’ = abbreviation of the word “of”