To fill with gas or expose to gas; to treat or affect with gaseous substances.
From 'be-' prefix plus 'gas' (from Dutch 'gas,' likely from Greek 'chaos'). This technical or rare term means to thoroughly fill or saturate with gas.
This word emerged with the modern chemistry age—when scientists needed a verb for completely filling something with gas, they used 'begass,' showing how older word-formation rules adapted to new scientific concepts.
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