Petrus Thomae, Quaestiones de ente, q. 14 a. 1 (ed. forthcoming):
If being is not univocal, it is not contractible.
The broader context, from the same passage:
Regarding the first article, I set forth seven propositions.
The first: 'contraction' connotes first what it is contracted through which it is contracted and to what it is contracted or the term of contraction, for contraction necessarily presupposes the contractible, co-requires the contractive, and pertains to some term.
The second: contraction presupposes one notion or concept in the contractible, for contraction seems to be nothing other unless the application of something to many through indifference and neutrality.
Corrolary: therefore if being is not univocal, it is not contractible.