thicken

saostaa, paksuntaa

saeta, sakeutua puhekieltä To make thicker (in the sense of wider).
puhekieltä To make thicker (in the sense of more viscous).
puhekieltä To become thicker (in the sense of wider).
{{quote-magazine|year=2013|month=July-August|author=http://www.americanscientist.org/authors/detail/stephen-p-lownie Stephen P. Lownie, http://www.americanscientist.org/authors/detail/david-m-pelz David M. Pelz
puhekieltä To become thicker (in the sense of more viscous).
puhekieltä To strengthen; to confirm.
(w)

And this may help to thicken other proofs.

(ux)