An Etymological Dictionary of Astronomy and Astrophysics

Having concern for or helping to improve the welfare and happiness of people
(dictionary.com).

Etymology (EN): → humanity + -arian a suffix forming nouns and adjectives, from -ari(us) or -ary + -an.

Etymology (PE): Martugândust, literally “friend/lover of humanity,” from martugân, → humanity, + dust “friend,” Mid.Pers. dôst “friend,” dôšidan
“to love, like, choose;” O.Pers. dauštā- “friend;” Av. zuš- “to take pleasure;” PIE root *geus- “to taste, like, choose;” cf. Skt. jos- “to like, enjoy;” Gk. geuomai, L. gustus “taste, enjoyment” (Cheung 2007).