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Amulet
A small object worn to ward off evil; a talisman
Appears in English around the turn of the 17^th century. From Latin amuletum, via Middle French amulete.

Emulate
To attempt to equal or surpass
Appears in English around the turn of the 17^th century. From Latin aemulatus, past participle of aemulari, to rival.

Immolate
To kill as a sacrificial victim, as by fire
Appears in English around the mid 16^th century. From Latin immolatus, past participle of immolare, to sprinkle with holy meal prior to sacrificing (mol=sacrificial barley cake, literally millstone!)

Omelette
A thick egg pancake made with cheese, veggie, and/or meat fillings
Appears in English around the turn of the 17^th century. From French omelette, earlier amelette, metathetic¹ form of alemette, variation of alemelle—literally a thin plate—which was a variation of Old French lemelle, from Latin lamella, plate. “Lamella” is in itself an English word that means a thin plate, scale, membrane, or layer in various biological contexts.

Umlaut
A two-dot diacritical mark on a vowel (i.e., ü, ë, etc.) to indicate a change in pronunciation from the unmarked vowel
Appears in English in the mid 19^th century. From German um-, about (i.e., changed) + Laut, sound.
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¹metathesis=the transposition of letters, syllables, or sounds in a word
Etymological info and some definitions taken from dictionary.com unabridged