Sama Vritti (Sanskrit for "equal wave" a foundational breathing technique)

level, measure, metronome, number, oscillation, period, plateau, progression, pulse, ramp, water, vibration, tock, timer, tide, tick, stream, still, step, stair, slope, series, scale, sand, river, flow, sequence, even, duration, drop, drip, decline, cycle, current, frequency, count, clock, ripple, flat, wave, grain, hertz, hourglass, incline, ladder, length