Welsh onion

From welsh + onion; capitalization is be conflation with Welsh, derived from welsh

Welsh onion (plural Welsh onions)

1. Any of species Allium fistulosum of onions, probably native to eastern Asia, widely cultivated.

   Synonyms: cibol (obsolete), Japanese bunching onion, spring onion

• William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “welsh”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.
• Welsh onion on Wikipedia.Wikipedia