tangent off

verb3

1. •
   (informal) To digress from (a topic).

   • Tangenting off this, for a few years a local strip mall had a rather interesting pairing of stores next to each other. — 2003
2. •
   (informal, rare) To digress from (a place).

   • Flying out, I noticed the ghost route (just the supports) tangented off the airport route. — 2001
3. •
   (informal) Synonym of fly off at a tangent (“to digress from a topic”).

   • Tangenting off... did not someone write an SF novel/story some years back about the social consequences when people were fitted with visible arousal indicators? — 1992