commendātrix, īcis, f. [commendator],
that which commends (rare): legem commendatricem virtutum, * Cic. Leg. 1, 22, 58: terra, * Plin. Ep. 8, 20, 2.
commendātrīx īcis, f commendo, that which commends : lex virtutum. ...
An Elementary Latin Dictionary