efficacious

موثر

du latin efficacem, de efficere, effectuer (=> EFFET)kâr-â(-mad)
be-kâr
kâr-sâz/gar/i
rah-gošâ
+
And apart from enjoyment of the work itself, desire for the good opinion of neighbors and for the feeling of effectiveness is quite sufficient to keep many men active.

(B. RUSSELL, Proposed Roads To Freedom)

manjur, mujarab

(เอฟฟะเค'เชิส) adj. มีประสิทธิภาพ,มีผล,ได้ผล. คำศัพท์ย่อย: efficaciousness n.

[efl'keishъs] а ефикасен, резултатен.