English

Verb

flabergast ‎(third-person singular simple present flabergasts, present participle flabergasting, simple past and past participle flabergasted)

1. (archaic) Alternative form of flabbergast^[2]

References

1. ↑ Joseph Wright (Ed.), editor (1900) The English Dialect Dictionary, Being the Complete Vocabulary of All Dialect, H. Frowde, page 376
2. ↑ William Dwight Whitney and Benjamin Eli Smith (Eds.), editor (1897) The Century Dictionary and Cyclopedia: Dictionary, Century, page 2245