Vine's Expository Dictionary: View Entry
πενθερός pentherós, pen-ther-os'; of uncertain affinity; a wife's father:—father in law.
The KJV translates Strong's G3995 in the following manner: father in law (1x).
father-in-law, a wife's father
Strong's Number G3995 matches the Greek πενθερός (pentheros), which occurs 1 times in 1 verses in the TR Greek.
View OT results in the LXX Greek concordance
View NT results in the MGNT Greek concordance
Jhn 18:13