calcify

verb 0.595

solidify

verb 0.580

ossify

verb 0.564

certify

verb 0.562

fibrin

verb 0.552

fortify

verb 0.547

acetylate

verb 0.546

epoxy

verb 0.542

acidify

verb 0.541

stiffen

verb 0.541

firm up

verb 0.534

petrify

verb 0.531

rigidify

verb 0.525

reify

verb 0.521

fossilize

verb 0.514

polymerize

verb 0.511

ert

verb 0.509

electrify

verb 0.508

encrypt

verb 0.508

tonify

verb 0.507

cyclize

verb 0.503

sterilize

verb 0.503

federalize

verb 0.503

indurate

verb 0.503

refortify

verb 0.503

strengthen

verb 0.501

carbonize

verb 0.501

stiffen up

verb 0.501

emery

verb 0.501