An Etymological Dictionary of Astronomy and Astrophysics

Having an intense, powerful, or vivid effect.
→ strong anthropic principle, → strong arm spiral galaxy, → strong encounter, → strong force, → strong gravitational lensing, → strong interaction, → strong lensing.

Etymology (EN): O.E. strang “physically powerful, powerful in effect, forceful;”
cf. O.N. strangr “strong,” Du. streng “strict, rigorous,” O.H.G. strang “strong, bold, hard,” Ger. streng “strict, rigorous.”

Etymology (PE): Sotorg “large, strong,” Mid.Pers. sturg “fierce; gross, coarse,” Av. stūra- “strong, large, rough,” stāuuišta- “strongest, biggest,” cf. Skt. sthūrá- “strong, big, massy, thick,” Gk. stylos “column, pillar,” M.L.G. stūr “big, strong, coarse.”
Zurmand, from zur, → strength, + -mand possession suffix.
Nirumand, from niru, → force + -mand possession suffix.