deliquesce
‘melt or dissolve gradually, become liquid by absorbing moisture from the air’
Lexical development traced from the Tamil root:
Lat. deliquescere ‘to melt away’ < de- + liquescere ‘to melt’ < liquere ‘to be liquid’ < liqui ‘to melt, flow’ < luhk < lik (Skeat) < Tamil aruvi