Origin of the name ARIMA.
Etymology of the
Meaning of the baby name ARIMA.
Basque name, derived from the vocabulary word arima, meaning "soul."
(American Journal of Psychology, Hall, v.15, 1904).
Japanese name meaning "has horses."
Arima Harunobu (d. 1612), was the second son and
successor of daimyo Arima Yoshisada. Arima Yorijuki (d. 1783), was a
Japanese mathematician who found the value of pi, correct to 29 digits. (Wiki)