biblically

The story

1. Ancient Greekβῠ́βλος (bŭ́blos)
2. Ancient Greekβυβλίον (bublíon)
3. Ancient Greekβιβλίον (biblíon)
4. Ancient Greekβῐβλῐ́ᾰ (bĭblĭ́ă)
5. LatinBiblia
6. Medieval Latinbiblicus
7. Proto-Indo-European*h₂el-
8. Proto-Indo-European*h₂élisder.?
9. Englishbiblical
10. Proto-Indo-European*leyg-
11. Proto-Germanic*līką
12. English todaybiblically

From biblical + -ly.