1. To lay beneath; to support by something laid under.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• undelay,
• enderly,
• undergae,
• udderly,
• unterly,
• undera,
• underlayer,
• underlake,
• undermy,
• interlay,
• underly,
• underwar,
• uderlay,
• undeway,
• underway,
• underelay,
• undrelay,
• underlayy,
• underlei,
• underli

• undersealed,
• undercut,
• Underdahl,
• undergird,
• undercover,
• undercharge,
• undercoated,
• underwater,
• underlying,
• underact,
• underwear,
• underlie,
• understate,
• undershrub,
• underarm,
• undersoil,
• underpay,
• underfur,
• undergrad,
• understand,
• underpin,
• undercoat,
• understated,
• underage,
• underbody,
• under arms,
• underdog,
• underseal,
• underneath,
• underworld,
• underframe,
• underclass,
• underpart,
• undergo,
• under,
• undervalue,
• underplay,
• under wraps,
• undertow,
• underling,
• underhill,
• understudy,
• underway,
• underseller,
• underbelly,
• undoer,
• undersell,
• underfed,
• underbid,
• under it,
• untier,
• undertaker,
• undersea,
• underline,
• under way,
• underfelt.

The adverb form of "underlay" is "underlightly".

The adjective form of the word "underlay" is "underlaid".

The plural of the "underlay" can be the "underlays".

The singular of the "underlay" can be the "underlay".