December 20, 2011 FTL Tagged: Theme Initialism, often employed in sf Terminology, for Faster Than Light – as for example in FTL Spaceship. Fritz Leiber's use of the term in "The Enchanted Forest" (October 1950 Astounding) may be the first printed appearance. [DRL]see also: Sublight. Previous versions of this entry 01/01/2005