yeartide

is likely misspelled.

has no English definition.

As a noun yeartide

is a specific time of year; season.

As nouns the difference between yeartime and yeartide

is that yeartime is a time of the year; a season while yeartide is a specific time of year; season.

As an adjective yeartime

is seasonal.

As nouns the difference between anniversary and yeartide

is that anniversary is of a significant event, a day that is an exact number of years (to the day) since the event occurred. Often preceded by an ordinal number indicating the number of years that have elapsed since the event while yeartide is a specific time of year; season.

As nouns the difference between year and yeartide

is that year is the time it takes the earth to complete one revolution of the sun (between 36524 and 36526 days depending on the point of reference) while yeartide is a specific time of year; season.

As nouns the difference between time and yeartide

is that time is while yeartide is a specific time of year; season.