Verb
(transitive) To increase or to succeed at a rate lower than (something else).
Tech stocks trailed behind the overall market today.
(transitive) To follow (someone) slowly, usually surreptitiously.
Source: en.wiktionary.orgAt royal balls and other formal Imperial gatherings, Maria would enter on her son's arm, and Alexandra would silently trail behind them according to court protocol. Source: Internet
They trail behind the wingtips and wing flaps rather than behind the engines. Source: Internet
Now, if Rachel takes our dogs out, I trail behind them, but I can walk for a good hour or more. Source: Internet
Rail blockades that began earlier this month in opposition to the project have crippled the country's transportation network, but the paper trail behind Coastal GasLink's pipeline approval reveals a conflict years in the making. Source: Internet