Vinicius de Moraes, Obra Poetica, Jose Aguilar, 1968
Vinicius de Moraes, Gedichte und Lieder, Piper,1989
Poema desentranhado da história dos particípios
(Do urianismo dos verbos ter e haver)
A partir do século XVI
Os verbos ter e haver esvaziaram-se de sentido
Para se tornarem exclusivamente auxiliares
E os particípios passados
Adquirindo em conseqüência um sentido ativo
Imobilizaram-se para sempre em sua forma indeclinável.
–Vinicius de Moraes
Poem deciphered from the history of participles
(On the urianism of the verbs ter and haver)
Starting from the 16th century
The verbs ter and haver were emptied of meaning
To become exclusively auxiliaries
And the past participles
Acquired consequently an active sense
Immobile for ever in their undeclinable forms.
(Translation by Dylan in the comments, correcting mine)
Vinicius de Moraes, who invented bossa nova, also wrote the above poem about the evolution of the Portuguese auxiliary verbs ter and haver and the consequent changes in the use of the past paticiple. My guess is that he was a bit drunk at the time.
It is to be noted that I am an old-school translator who reads Portuguese with great ease, and sometimes accurately too. My own translation wasn’t too bad except for one word, but Dylan’s in the comments is better, so I’ve posted it.
No progress on urianismo so far. A Portuguese-only Google search gets eight hits, all of which are this poem except for one misprint. Uranism [= homosexuality] has been suggested, but in Spanish, Italian, and Portuguese that’s uranismo. According to an Argentine atheist group, urianismo is a unicorn-worshiping competitor of pastafarismo, the worship of the Flying Spaghetti Monster, but Vinicius’ poem considerably predates the founding of that cult.
Urian is an actual but rare surname and Christian name. This Lulu-published book preaches Urianism, but it doesn’t seem relevant to Portuguese grammar. The following passage seems unhelpful: Urianism hopholds that good previces insurent in coidered promples can onlikonly be reanized thouriough acietable, tredirent, commistent and pastory ….