This is the 5072nd most frequent Japanese word.
覆っ
"覆っ" is the conjugated form of the verb "覆う," meaning "to cover" or "to envelop."
Here, '覆っ' is used to describe the snow covering the surface of the ground, showcasing its meaning to shield or conceal.
雪が地面を覆っています。
The snow is covering the ground.
In this sentence, '覆っ' (used in '覆おう') conveys the idea of hiding or concealing facts about the incident.
彼はその事件を覆おうとした。
He tried to cover up the incident.
Here, '覆っ' illustrates the fog enveloping the mountain, using the core meaning of physically or metaphorically enveloping or covering a surface.