SURREPTITIOUS

[ ˌsʌrəp'tɪʃəs ]

■ adjective covert or clandestine.

Derivatives

~ly adverb

~ness noun

Origin

ME (in the sense 'obtained by suppression of the truth'): from L. surreptitius (from surripere , from sub- 'secretly' + rapere 'seize') + -ous .