Latin 'fons' / 'fontis' (the spring, the source) + '-ina' (the close) — the spring-one
She keeps the spring at the head of the valley clear and cold through the worst of the summer heat, and the water she gives is said to heal any fever that runs in the village below.
Best for A spring undine of the clear source
Latin 'flumen' (the river) + '-ia' (the close) — the river-one
She rides the long current from the head-water to the sea, and the boats that follow her line are said to clear every sandbar without ever running aground.
Best for A river undine of the long current
Latin 'lacus' (the lake) + '-a' (the close) — the lake-one
She keeps the deep still water of the mountain lake, and the swimmer who reaches the centre of her pool is said to see the whole sky reflected twice — once above, once below.
Best for A lake undine of the deep still water
Latin 'anima' (the soul) + '-ena' (the close) — the soul-seeking-one
She seeks the human soul that the Paracelsian tradition says the water-folk are born without, and the mortal she marries is said to feel a faint pulse of her longing in every drop of rain that touches his skin.
Best for A soul-seeking undine of the mortal marriage
Latin 'profundus' (the deep) + '-a' (the close) — the deep-one
She lives in the deep water below the line where the light fails, and the things she has seen there are said to be older than any record kept on the dry land above.
Best for A deep undine of the open water
Latin 'ripa' (the river-bank) + '-aria' (the close) — the bank-one
She walks the river-bank at dusk, and the willow-boughs are said to bend toward her as she passes, even when the wind is still.
Best for A river undine of the river's edge
Latin 'stagnum' (the standing water, the still pool) + '-ia' (the close) — the still-pool-one
She keeps the still pool in the heart of the wood, and the surface she tends is said to be smooth enough to read the stars from on the clearest of nights.
Best for A lake undine of the still pool
Latin 'spuma' (the foam, the breaking crest) — the foam-one
She rides the foam of the breaking wave at the river-mouth, and the salt-spray she lifts is said to land softest on the boats that have given her a flower in the spring.
Best for A deep undine of the breaking wave
Latin 'anima' (the soul) + 'mar' (the sea) + '-a' (the close) — the soul-of-the-sea
She seeks her human soul on the open sea, and the sailors who feel a faint sorrow at the height of a calm are said to be feeling the edge of her longing pass through them.
Best for A soul-seeking undine of the open sea
Latin 'lentus' (the slow, the still, the lingering water) + '-ina' (the close) — the slow-water-one
She keeps the slow bend of the river where the water runs deepest, and the otters of her pool are said to be the only ones in the whole river that are not afraid of the bank.
Best for A river undine of the slow bend
Latin 'mare' (the sea, the open salt water) + '-el' (the close) — the sea-one
He lives in the open salt water beyond the sight of land, and the deep-current he keeps is said to be older than any of the rivers that feed it.
Best for A deep undine of the open salt
Latin 'vadum' (the shallow, the ford) + '-osa' (the full of) — the ford-one
She keeps the shallow ford at the safest crossing of the river, and the travellers who pass without paying their coin to the bank are said to find the water a hand deeper on the way back.
Best for A river undine of the shallow ford