No, &quot;lb.&quot; comes from &quot;libra&quot; meaning scales or balance, not &quot;liber&quot;.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Pound_(mass)#Roman_libra" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Pound_(mass)#Roman_libra</a>