"underlaid" in the verb sense
1. underlay
raise or support (the level of printing) by inserting a piece of paper or cardboard under the type
"underlay the plate"
2. underlay
put (something) under or beneath
"They underlaid the shingles with roofing paper"
3. underlay
provide with a base, support, lining, or backing
"underlay the boards with joists"
Source: WordNet® (An amazing lexical database of English)
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