What is the meaning of Least?

The most little; the smallest amount or quantity of something.

Used for forming superlatives of adjectives, especially those that do not form the superlative by adding -est.

In the smallest or lowest degree; in a degree below all others.

Something of the smallest possible extent; an indivisible unit.

superlative degree of little; smallest

At least.

passive infinitive of le

passive infinitive of lea

Source: wiktionary.org