An island in the river Anduin (LotR/812), translated “Ship of Long Foam” (PM/371), sometimes appearing as just Andros “Long Foam (LotR/1115). This name is a combination of cair “ship”, and “long” and ross¹ “foam, spray” (SA/an(d), ros).

Conceptual Development: In Lord of the Rings drafts from the 1940s, this island was first named N. Tol Varad “Defended Isle”, soon revised to Men Falros “*Place of Splashing Foam” (WR/326). Later in the drafts it was changed to N. Cairros “*Ship Foam” then Andros before Tolkien settled on its full form N. Cair Andros (WR/340 note #15).

Precursor to Cair Andros (WR/340), apparently a combination of a later form cair of N. ceir “ship” and the lenited form -ros of rhoss¹ “rain” or (later) “foam”.

See S. Cair Andros for further discussion.

Earlier name for Cair Andros (WR/326), apparently a combination of N. men² “*place”, some form of the root ᴹ√PHAL “foam” and the suffixal form of -ros of rhoss¹ “rain”, perhaps meaning “*Place of Splashing Foam” as suggested by Roman Rausch (EE/3.33).

Earliest name for Cair Andros (WR/326), a combination of N. toll “isle” and the lenited form of barad¹ “fort” or perhaps an adjective form (?baradh) equivalent to ᴹQ. varna, as suggested by Roman Rausch (EE/3.33).