subintroduce /sub-in-trō-dūsˈ/

To bring in surreptitiously or subtly

• intersidereal
• interspace
• interspaced
• interspaces
• interspacing
• interspatial
• interspatially
• interspecific
• interspersal
• interspersals
• intersperse
• interspersed
• intersperses
• interspersing
• interspersion
• interspersions
• interspinal
• interspinous
• interstadial
• interstadials
• interstate
• interstates
• interstellar
• interstellary
• interstice