coalesce
‘grow together, unite by growing into one body’
Lexical development traced from the Tamil root:
E. coalesse, coälesce < Lat. coalescere ‘unite, grow together, become one in growth’ < com- ‘together’ + alescere ‘be nourished, increase, grow up’ < alere ‘to suckle, nourish’ < uhl < al- < Tamil al