gather
v.v. to come together in a group or to collect things in one place. You can also use it to mean you have understood something based on the information you have.
v. to bring together or assemble from various places; to collect or accumulate. Also used to indicate a conclusion reached through inference or observation.
The students gather in the hall every morning.
I gather from our conversation that you are not happy with the new schedule.
The researchers spent months in the field to gather enough data to support their hypothesis regarding local migration patterns.
From Middle English gaderen, from Old English gaderian (“to gather, assemble”), from Proto-West Germanic gadurōn (“to bring together, unite, gather”), from Proto-Indo-European gʰedʰ- (“to unite, assemble, keep”).
The verb can be transitive (gathering objects) or intransitive (people gathering). When used to mean 'understand', it is often followed by a 'that' clause.
I gather for you are busyI gather that you are busyWhen used to mean 'infer' or 'understand', the verb requires a 'that' clause or a direct object, not 'for'.