1ham·per 
/ˈhæmpɚ/ verb
ham·pers; ham·pered; ham·per·ing /ˈhæmpɚ/ verb [+ obj] : to slow the movement, progress, or action of (someone or something)
▪ Bad weather could hamper our search efforts. = Bad weather could hamper us in our search efforts. ▪ The project was hampered by budget restraints. ▪ Construction is hampering traffic on the highway.
▪ Bad weather could hamper our search efforts. = Bad weather could hamper us in our search efforts. ▪ The project was hampered by budget restraints. ▪ Construction is hampering traffic on the highway.
