Collaterally

1col;lat;er;al pronunciation: function: adjective etymology: middle english, from anglo-french, from medieval latin collateralis, from latin com- + lateralis lateraldate: 14th century 1 a : accompanying as secondary or subordinate : concomitant lt;digress into collateral mattersgt; b : indirect c : serving to support or reinforce : ancillary2 : belonging to the same ancestral stock but not in a direct line of descent — compare lineal 3a3 : parallel, coordinate, or corresponding in position, order, time, or significance lt;collateral states like athens and spartagt;4 a : of, relating to, or being collateral used as security (as for payment of a debt or performance of a contract) b : secured by collateral— col;lat;er;al;i;ty noun — col;lat;er;al;ly adverb