1. At the beginning
   - initially

1. From the beginning

Encyclopedia: Ab initio

• learning curve
• learning disability
• learning disorder
• Leary
• leasable
• lease
• lease giver
• lease-lend
• leaseback
• leased
• leasehold
• sensify
• sensing
• sensing element
• sensitisation
• sensitise
• sensitised
• sensitiser
• sensitising
• sensitive
• sensitive fern
• sensitive pea
• sensitive plant
• sensitively
• sensitiveness