What is the meaning of Sank?

simple past of sink

first/third-person singular preterite of sinken

the act of singing

a chant

a song, especially one sung during work

the sound of a bell, bell ringing

simple past of synke

imperative of sanke

marshy

the state (of a ship or the like) of no longer being able to float due to damage

to be shot down, defeated, or the like

Source: wiktionary.org