  In this report we present the first ever results of strong pretransitional
effect observed for the maximum of absorption peak $${\epsilon}_{max}^{''}(T)$$
in supercooled liquid-crystalline systems near the glass transition
temperature. This anomaly may be described by critical-like relation with
critical exponent {\alpha}=0.5, which corresponds well with previous results
for static electric permittivity $${\epsilon}_{s}(T)$$. Such a behaviour may
suggest thermodynamic character of glass transition.
