/un'deuhr layd"/ , adj.
1. placed or laid underneath, as a foundation or substratum.
2. having an underneath layer (often fol. by with ): a lace tablecloth underlaid with damask; courtesy underlaid with reserve.
v.
3. pt. and pp. of underlay .
[ bef. 1100; late OE under lede (not recorded in ME); see UNDER-, LAID ]