動詞 respire:

1. breathe easily again, as after exertion or anxiety
2. undergo the biomedical and metabolic processes of respiration by taking up oxygen and producing carbon monoxide
3. draw air into, and expel out of, the lungs
   同義詞：breathe, take a breath, suspire

re.spire

v.（動詞）
re.spired,re.spir.ing,re.spires
v.intr.（不及物動詞）
To breathe in and out; inhale and exhale.
呼吸：吸氣和呼氣；吸入和呼出
To undergo the metabolic process of respiration.
進行呼吸代謝進程
To breathe easily again, as after a period of exertion or trouble.
松口氣：重新輕松地呼吸，如經(jīng)歷了一個費力或困難的階段后
v.tr.（及物動詞）
To inhale and exhale (air); breathe.
呼吸：吸入和呼出（空氣）；呼吸

來源：
Middle English respiren [to breathe again]
中古英語 respiren [再呼氣]
from Latin respor3re
源自 拉丁語 respor3re
re- [re-]
re- [.再、又.]
spor3re [to breathe]
spor3re [呼吸]