cratio
Could not find cratiantur in Logeion dictionaries.
cratiantur Verb: present passive subjunctive 3rd plural of cratio
crātĭo, īre, v. a. [cratis],
- to harrow (rare): herbam, Plin. 18, 28, 67, § 258.
crātio, īre (cratis), eggen, Plin. 18, 258.
crātĭō, īre (cratis), tr., herser : Plin. 18, 258.