bonny or bonnie /bonˈi, also (Scot) bōˈni/

1. Comely, pretty
2. Plump
3. Healthy-looking
4. As a general term expressing appreciation, fine, splendid, considerable, etc (often ironic)
5. Smiling, cheerful (obsolete)
6. Big and strong (Shakespeare)

A sweetheart

• three-card monte
• three-card trick
• three-card tricks
• three-centred
• three cheers
• three-cleft
• three-colour
• three-colour process
• three-cornered
• three-D
• three-day event
• three-day eventer
• three-deck
• three-decker
• three-deckers
• three deep
• three-dimensional
• three-dimensionality
• three estates
• three-farthing
• three-farthings
• threefold
• threefoldness
• threefoldnesses
• three-foot