Etymology
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Words related to awe

awing (n.)
"action of inspiring with awe," 1650s, verbal noun from awe (v.).
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ail (v.)

c. 1300, from Old English eglan "to trouble, plague, afflict," from Proto-Germanic *azljaz (source also of Old English egle "hideous, loathsome, troublesome, painful;" Gothic agls "shameful, disgraceful," agliþa "distress, affliction, hardship," us-agljan "to oppress, afflict"), from PIE *agh-lo-, suffixed form of root *agh- (1) "to be depressed, be afraid." Related: Ailed; ailing; ails. From late Old English also of mental states and moods.

It is remarkable, that this word is never used but with some indefinite term, or the word no thing; as What ails him? ... Thus we never say, a fever ails him. [Johnson]
ache (v.)
Old English acan "suffer continued pain," from Proto-Germanic *akanan, perhaps from a PIE root *ag-es- "fault, guilt," represented also in Sanskrit and Greek, which is perhaps imitative of groaning.

Originally the verb was pronounced "ake," the noun "ache" (as in speak/speech). The noun changed pronunciation to conform to the verb, but the spelling of both was changed to ache c. 1700 on a false assumption of a Greek origin (specifically Greek akhos "pain, distress," which rather is a distant relation of awe (n.)). Related: Ached; aching.
Achilles 
Greek hero of the Trojan War stories, bravest, swiftest, and handsomest of Agamemnon's army before Troy, he was son of Thetis and Peleus. His name is perhaps a compound of akhos "pain, grief" (see awe) + laos "the people, a people" (see lay (adj.)); or else it is from Pre-Greek (non-IE). Related: Achillean.
awesome (adj.)
1590s, "profoundly reverential," from awe (n.) + -some (1). Meaning "inspiring awe or dread" is from 1670s; weakened colloquial sense of "impressive, very good" is recorded by 1961 and was in vogue from after c. 1980. Related: Awesomely; awesomeness.
awestruck (adj.)
also awestruck, "overwhelmed by reverential fear," 1630s (Milton), from awe (n.) + struck (see strike (v.)). Perhaps coined to cut a path between the contemporary senses of awesome ("reverential") and awful ("causing dread"). Awe-strike (v.) is not recorded until much later (1832), has always been rare, and is perhaps a back-formation.
awful (adj.)
c. 1300, agheful "worthy of respect or fear, striking with awe; causing dread," from aghe, an earlier form of awe (n.), + -ful. The Old English word was egefull. Weakened sense "very bad" is from 1809; weakened sense of "excessively, very great" is by 1818. It formerly was occasionally used in a sense "profoundly reverential" (1590s).
overawe (v.)

"subdue or control by fear or superior influence," 1570s, from over- + awe (v.). Perhaps coined by Spenser. Related: Overawed; overawing.