noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An alternative tangential, subordinate, or secondary variant form of a word or morpheme.

Synonyms

All synonyms

sideform

Etymology

From by- + form. Compare West Frisian byfoarm (“byform”), Dutch bijvorm (“byform”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.