What is the meaning of Duco?

Automotive paint.

To paint with automotive paint.

to lead, guide, conduct, lead away

to take

to draw, pull

to think, consider, regard, calculate, count, reckon

ellipsis of dūcere domum

1. to lead (a wife in marriage), to marry, to take (as one’s wife)
2. to lead a prostitute (scortum) home to have sex; to have sex with a prostitute

   to lead (a wife in marriage), to marry, to take (as one’s wife)

   to lead a prostitute (scortum) home to have sex; to have sex with a prostitute

   to prolong, to protract

   to march, command, lead (e.g., an army)

   to march (said of soldiers, lit. "be led")

   to forge

   Source: wiktionary.org