" earliest "

[Adverb]  | "ear*ly" | \ ˈər-lē \

1: near the beginning of a period of time

2: near the beginning of a course, process, or series

3: before the usual or expected time

Origin: 13th century ;

 Middle English erly, from Old English ǣrlīce, from ǣr early, soon ;

[Adjective]  | "early" 

1: of, relating to, or occurring near the beginning of a period of time, a development, or a series

2: distant in past time

3: primitive

Origin: before 12th century ;

[Idiom]  | "at someone's earliest opportunity" 

1: as soon as it is possible for someone to do something

[Idiom]  | "at the earliest" 

1: —used to indicate the earliest possible time when something will happen or be done

[Noun]  | "op*por*tu*ni*ty" | \ ˌä-pər-ˈtü-nə-tē \

1: a favorable juncture of circumstances

2: a good chance for advancement or progress

Origin: 14th century ;

 Middle English oportunyte, borrowed from Anglo-French & Latin; Anglo-French oportunité, borrowed from Latin opportūnitāt-, opportūnitās, from opportūnus "convenient, {see: |opportune|opportune}" + -itāt-, -itās {see: |-ity|-ity};

[Adjective]  | "earliest" 

[Adjective]  | "early" 

[Adverb]  | "early"