blatantyoudaoicibaDictYouDict[blatant 词源字典]
blatant: [16] Blatant appears to have been coined, or at least introduced, by the poet Edmund Spenser. In the Faerie Queene 1596 he describes how ‘unto themselves they [Envy and Detraction] gotten had a monster which the blatant beast men call, a dreadful fiend of gods and men ydrad [dreaded]’. This ‘blatant beast’ was an allegorical representation of calumny. In the 17th century the word came to be applied to offensively voluble people, but the main modern sense, ‘offensively conspicuous’, does not seem to have developed until the late 19th century.

If the word was Spenser’s own introduction, it is not clear where he got it from. The likeliest candidate seems to be Latin blatīre ‘babble, gossip’, of imitative origin.

[blatant etymology, blatant origin, 英语词源]
dread (v.)youdaoicibaDictYouDict
late 12c., a shortening of Old English adrædan, contraction of ondrædan "counsel or advise against," also "to dread, fear, be afraid," from on- "against" + rædan "to advise" (see read (v.)). Cognate of Old Saxon andradon, Old High German intraten. Related: Dreaded; dreading. As a noun from 12c.
tremendous (adj.)youdaoicibaDictYouDict
1630s, "awful, dreadful, terrible," from Latin tremendus "fearful, to be dreaded, terrible," literally "to be trembled at," gerundive form of tremere "to tremble" (see tremble (v.)). Hyperbolic or intensive sense of "extraordinarily great or good, immense" is attested from 1812, paralleling semantic changes in terrific, terrible, dreadful, awful, etc. Related: Tremendously.