Word Study
lignify
CIDE DICTIONARY
lignify, v. t. [L. lignum wood + -fy: cf. F. lignifier.].
To convert into wood or into a ligneous substance. [1913 Webster]
lignify, v. i.
To become wood. [1913 Webster]
OXFORD DICTIONARY
lignify, v.tr. & intr. (-ies, -ied) Bot. make or become woody by the deposition of lignin.
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