Word derivation for "heavy" (of great weight) (adjective) :
Basque = astun, Finnish = raskas
Miresua = raskun
Another word for heavy in Finnish is painava.
This meaning of the word heavy appears in Through the Looking-Glass a handful of times.
"...And what IS this on my head?" she exclaimed in a tone of dismay, as she put her hands up to something very heavy, and fitted tight all round her head.