1) Butterflies source 2) Extreme nervousness 3) Exclusively Anglo word 4) Exclusively Saxon word 5) Heebie-jeebies 6) Nerves 7) Nervousness 8) Pre-speech obstacle 9) Screaming meemies 10) Slang for nerves 11) Word of purely Anglo origin 12) Word with Anglo-Saxon origins Found on https://www.crosswordclues.com/clue/jitters