appulse /ə-pulsˈ/

1. A striking against something
2. (of two celestial objects) an apparent coming to conjunction or to the meridian as perceived by an observer (astronomy)
3. Specif the close approach of a planet or asteroid to a star without the occurrence of an eclipse

• Swiftian
• swifting
• swiftlet
• swiftlets
• swiftly
• swiftness
• swiftnesses
• swifts
• swift-winged
• swig
• swigged
• swigger
• swiggers
• swigging
• swigs
• swill
• swilled
• swiller
• swillers
• swilling
• swillings
• swills
• swill-tub
• swill-tubs
• swim