Let me make some supplementary comments on the new words.

euphoria (in a state of euphoria)

<from Greek: eu ‘well’, pherein ’to bear’>

palpable (palpable effect)

<from Latin: palpare ‘feel, touch gently’>

chant (chant slogans)

<from Old French: chanter ‘to sing’>

mammoth (mammoth mission)

<from Russian: mamot>

formidable (formidable opponent)

<from Latin: formīdō ‘dread, terror’>