offshooting

plural offshootings

1. An offshoot; a diversion or branching off.

   At the first offshooting of the English language from its present stem, its growth and development began at once to tend toward logical simplicity […]

   1869, William Conant Church, The Galaxy, volume 7, page 103

   1 more example

   I must be shorter; I did not mean to turn off into the mere offshootings of my story, here and there; but the dreaminess I speak of leads me sometimes; and I, as impotent then, obey the dreamy prompting.

   1852, Herman Melville, Pierre; or, The Ambiguities