inroad /inˈrōd/

1. An incursion into an enemy's country
2. A raid
3. Encroachment

make inroads into

1. To make progress with
2. To use up large quantities of

• plectrons
• plectrum
• plectrums
• pled
• pledge
• pledgeable
• pledged
• pledgee
• pledgees
• pledgeor
• pledgeors
• pledger
• pledgers
• pledges
• pledget
• pledgets
• pledging
• pledgor
• pledgors
• -plegia
• -plegic
• Pleiad
• Pleiades
• Pleiads
• plein-air