10 letters · 18 points in Scrabble
adjective of or relating to plankton
originFrom plankton + -ic, after German planktonisch. From Ancient Greek πλαγκτόν (planktón, “drifting”), neuter nominative of πλαγκτός (planktós), from πλάζομαι (plázomai, “to wander, drift”), from πλάζω (plázō, “to cause to wander, drive astray”).
Etymology from Wiktionary, CC BY-SA 3.0