Pancreas

google

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late 16th century: modern Latin, from Greek pankreas, from pan ‘all’ + kreas ‘flesh’.

wiktionary

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Existing in English since the sixteenth century: from Latin pancreas, from Ancient Greek πάγκρεας(pánkreas), from πᾶν(pân, “all”) (equivalent to English pan-) + κρέας(kréas, “flesh”). [1]

etymonline

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pancreas (n.)

gland of the abdomen, 1570s, from Latinized form of Greek pankreas "sweetbread (pancreas as food), pancreas," literally "entirely flesh," from pan- "all" (see pan-) + kreas "flesh" (from PIE root *kreue- "raw flesh"), probably so called for the homogeneous substance of the organ. Related: Pancreatic.