Sudden, Suddenly - Vine's Expository Dictionary of New Testament Words
Sudden, Suddenly
[ A-1,Adjective,G160, aiphnidios ]sudden," occurs in 1 Thessalonians 5:3, where it has the place of emphasis at the beginning of the sentence, as olethros, "destruction," which the adjective qualifies, has at the end; in Luke 21:34, it is used adverbially, RV, "suddenly" (AV, "unawares"). See UNAWARES.
[ B-1,Adverb,G869, aphno ]
"suddenly," occurs in Acts 2:2; Acts 16:26; Acts 28:6.
[ B-2,Adverb,G1810, exaiphnes ]
a strengthened form, akin to No. 1, occurs in Mark 13:36; Luke 2:13; Luke 9:39; Acts 9:3; Acts 22:6.
[ B-3,Adverb,G1819, exapina ]
a later form of No. 2, occurs in Mark 9:8.
Note: For tacheos in 1 Timothy 5:22, AV, "suddenly," RV, "hastily," See QUICKLY, No. 3.