Spiritus – flowing, sibilant, rushing, sounds a lot more like breathing — living — than that thumping plosive Middle English or Anglo-Saxon equivalent. A pick-me-up; young Marilyn Monroe doing cartwheels on the beach.
Latin
Etymology
From spirō (“breathe, respire; live”).
Pronunciation
/ˈspiː.ri.tus/
Noun
spīritus m (genitive spīritūs); fourth declension
breath, breathing
light breeze
spirit, ghost
energy
pride, arrogance