Nonius Marcellus, Compendium of Doctrine, Vol. II (1888) - Page 18

Varro in The Judgment of Arms: To stand on the shore with the very tips of the claws like crabs. — Lucilius, Satires, book XX:

I condemned the savage law of Calpurnius Piso, and I drew out the spirit at the very nostrils.

Afranius in Vopiscus:

Away with your dire spirit in your nostrils! I barely endured it, by god.

M. Tullius Cicero in Hortensius: Who [have] that I-know-not-what, which they say they have on the tips of their lips. — The same in On the Orator: Which those rhetoricians would not have touched even with the tips of their lips.

Poesis poetic work/composition and poema poem have this difference: poesis is the texture of the writings; poema is a small invention which is dispatched in a few verses. Lucilius, Satires, book IX:

Now you will recognize what these are worth and what is the difference between this and that. First, that which we call a poema poem, a poema is a small part: behold, an idyll is a poema, or a couplet, likewise any letter [that is] not large, is a poemation little poem.