To treat or prepare something using herbs; to infuse or medicate with herbal preparations.
From 'herbal' plus the verb-forming suffix '-ize' (to make or become). This is a technical term in herbalism and botanical medicine, meaning to process something into herbal form or to apply herbal treatment.
Herbalize is the verb form most herbalists use when they're professionally documenting their work, though it's rarer in everyday speech than 'herbify' might be—which is why you won't hear it much outside academic or clinical herbal contexts.
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