power, effect, effectivity, effectiveness · power (measure of the rate of doing work or transferring energy) · throughput (rate of processing)
çekim: çoğul tehot · tamlayan tehon
köken: teh(t)- + -o, probably from the same root as tehdas (and possibly tehdä). The forms with -ht- are likely original (compare Karelian tehto), and the forms with -h- may be generalized by analogy from the weak stem, although according to SSA, sound symbolicism may have also played a part.
köken: Etymology tree Latin efficiēns Proto-Indo-European *-yós Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ia Latin efficientia From efficiēns + -ia.