イ, おそ.れる, かしこま.る, かしこ, かしこ.し
fear, majestic, graciously, be apprehensive
JLPT0 G7 S9 F2389
The relevant oracle bone form of this character shows a club held by 鬼# (large, lumpy being) → fearsome, lumpy being that clubs its prey → *fear*; *apprehension*; *dread*; *awe* → *reverence*.
[Full Kanji Etymology List]