Forge. From MLG ēse, esse, hearth or forge. Part of a mini iron-working group. See Keevise.
Cove, creek, inlet, bight, or, according to Saagpakk, pool or quagmire. Being named after the Varsaallika inlet, one may hazard a guess as to which acception is least unlikely. Wiedemann F.J. gives its German as Bachbusen or Meerbusen (stream… or sea…) and since the primary meaning of Busen is bust or bosom, he seems to understand it more as something rounded, like a cove, bay or bight.
Aftermath, second hay, second cut. In French: regain. Apropos of nothing, see Jean Giono’s beautifully-written lyrical trilogy, Pan, including Colline, Un de Baumugnes and Regain. Learn French, read it. Part of a fodder and staples street-name group. See Aru.