the verb "tease" originates from old english tǣsan, meaning "to pluck, pull, or tear apart," particularly in reference to wool or flax. this literal sense of pulling fibers apart evolved metaphorically into the figurative meaning of annoying or provoking someone, much like pulling at their patience. the "-ing" suffix, of germanic origin, is added to form the present participle and verbal noun, a standard process in english word formation. thus, "teasing" retains the core notion of provoking or irritating, a conceptual extension from its original, physical action.

the word "teasing" is a simplex form derived from the verb "tease" with the addition of the suffix "-ing". it is not productively segmented into smaller, meaningful morphemes from its current english spelling.