1: φόβος
(Strong's #5401 — Noun Masculine — phobos — fob'-os )

"fear," is rendered "terror" in Romans 13:3; in 2—Corinthians 5:11; 1—Peter 3:14 , AV (RV, "fear"). See FEAR , No. 1.

2: φόβητρον
(Strong's #5400 — Noun Neuter — phobetron — fob'-ay-tron )

"that which causes fright, a terror," is translated "terrors" in Luke 21:11 , RV (AV, "fearful sights"). See FEAR , A, Note. For ptoesis, See AMAZEMENT.