In Hebrews 11:1 the word πραγμάτων (pragmaton) is used:
Ἔστιν δὲ πίστις ἐλπιζομένων ὑπόστασις, πραγμάτων ἔλεγχος οὐ βλεπομένων.
"Now faith is the assurance of things hoped for, the conviction of things not seen."
What is the difference between the Greek words "pragma" and "pragmaton", and what is the relation between these two terms.