Rationabilis
Defined in 3 dictionaries — Ballentine's (1916), Kinney (1893), Stimson (1881)
Ballentine's Law Dictionary
James A. Ballentine · 1916
Reasonable.
A Law Dictionary and Glossary
George C. Kinney · 1893
^ In old English law. Reasonable, v. De rationabili; De rationabilibus.
Glossary of Technical Terms, Phrases, and Maxims of the Common Law
Frederic Jesup Stimson · 1881
/. Reasonable; v. Dos, Be